Equation of a Line, Sphere, and a Plane in Different Forms
Three Dimensional Geometry

121275 In three dimensional space \(x^2-5 x+6=0\) represents

1 two points
2 two parallel planes
3 two parallel lines
4 a pair of non parallel lines
Three Dimensional Geometry

121276 If the equation of the plane passing through the line of intersection of the planes \(2 x-y+z=3\), \(4 x-3 y+5 z+9=0\) and parallel to the line \(\frac{x+1}{-2}=\frac{y+3}{4}=\frac{z-2}{5}\) is \(a x+b y+c z+6=0\). Then \(\mathbf{a}+\mathbf{b}+\mathbf{c}\) is equal to

1 14
2 12
3 13
4 15
Three Dimensional Geometry

121277 A plane \(x\) passes through the point \((1,1,1)\). If \(b, c\), a are the direction ratios of a normal to the plane, where \(\mathbf{a}, \mathbf{b}, \mathbf{c}(\mathbf{a}\lt \mathbf{b}\lt \mathbf{c})\) are the factors of 2001,then the equation of the plane is

1 \(29 x+31 y+3 z=63\)
2 \(23 x+29 y-29 z=23\)
3 \(23 x+29 y+3 z=55\)
4 \(31 x+37 y+3 z=71\)
Three Dimensional Geometry

121279 If the plane \(56 x+4 y+9 z=2016\) meets the coordinated axes in \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) then the centroid of the triangle \(\mathrm{ABC}\) is

1 \((12,168,224)\)
2 \((12,168,112)\)
3 \(\left(12,168, \frac{224}{3}\right)\)
4 \(\left(12,-168, \frac{224}{3}\right)\)
Three Dimensional Geometry

121280 The plane \(3 x+4 y+6 z+7=0\) is rotated about the line \(\overrightarrow{\mathbf{r}}=(\hat{\mathbf{i}}+\mathbf{2} \hat{\mathbf{j}}-\mathbf{3} \hat{\mathbf{k}})+(\mathbf{2} \hat{\mathbf{i}}-\mathbf{3} \hat{\mathbf{j}}+\hat{\mathbf{k}})\) unit the plane passes through origin. The equation of the plane in the new position is

1 \(4 x-5 y-2 z=0\)
2 \(x+2 y+4 z=0\)
3 \(6 x+3 y-4 z=0\)
4 \(x+y+z=0\)
Three Dimensional Geometry

121275 In three dimensional space \(x^2-5 x+6=0\) represents

1 two points
2 two parallel planes
3 two parallel lines
4 a pair of non parallel lines
Three Dimensional Geometry

121276 If the equation of the plane passing through the line of intersection of the planes \(2 x-y+z=3\), \(4 x-3 y+5 z+9=0\) and parallel to the line \(\frac{x+1}{-2}=\frac{y+3}{4}=\frac{z-2}{5}\) is \(a x+b y+c z+6=0\). Then \(\mathbf{a}+\mathbf{b}+\mathbf{c}\) is equal to

1 14
2 12
3 13
4 15
Three Dimensional Geometry

121277 A plane \(x\) passes through the point \((1,1,1)\). If \(b, c\), a are the direction ratios of a normal to the plane, where \(\mathbf{a}, \mathbf{b}, \mathbf{c}(\mathbf{a}\lt \mathbf{b}\lt \mathbf{c})\) are the factors of 2001,then the equation of the plane is

1 \(29 x+31 y+3 z=63\)
2 \(23 x+29 y-29 z=23\)
3 \(23 x+29 y+3 z=55\)
4 \(31 x+37 y+3 z=71\)
Three Dimensional Geometry

121279 If the plane \(56 x+4 y+9 z=2016\) meets the coordinated axes in \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) then the centroid of the triangle \(\mathrm{ABC}\) is

1 \((12,168,224)\)
2 \((12,168,112)\)
3 \(\left(12,168, \frac{224}{3}\right)\)
4 \(\left(12,-168, \frac{224}{3}\right)\)
Three Dimensional Geometry

121280 The plane \(3 x+4 y+6 z+7=0\) is rotated about the line \(\overrightarrow{\mathbf{r}}=(\hat{\mathbf{i}}+\mathbf{2} \hat{\mathbf{j}}-\mathbf{3} \hat{\mathbf{k}})+(\mathbf{2} \hat{\mathbf{i}}-\mathbf{3} \hat{\mathbf{j}}+\hat{\mathbf{k}})\) unit the plane passes through origin. The equation of the plane in the new position is

1 \(4 x-5 y-2 z=0\)
2 \(x+2 y+4 z=0\)
3 \(6 x+3 y-4 z=0\)
4 \(x+y+z=0\)
Three Dimensional Geometry

121275 In three dimensional space \(x^2-5 x+6=0\) represents

1 two points
2 two parallel planes
3 two parallel lines
4 a pair of non parallel lines
Three Dimensional Geometry

121276 If the equation of the plane passing through the line of intersection of the planes \(2 x-y+z=3\), \(4 x-3 y+5 z+9=0\) and parallel to the line \(\frac{x+1}{-2}=\frac{y+3}{4}=\frac{z-2}{5}\) is \(a x+b y+c z+6=0\). Then \(\mathbf{a}+\mathbf{b}+\mathbf{c}\) is equal to

1 14
2 12
3 13
4 15
Three Dimensional Geometry

121277 A plane \(x\) passes through the point \((1,1,1)\). If \(b, c\), a are the direction ratios of a normal to the plane, where \(\mathbf{a}, \mathbf{b}, \mathbf{c}(\mathbf{a}\lt \mathbf{b}\lt \mathbf{c})\) are the factors of 2001,then the equation of the plane is

1 \(29 x+31 y+3 z=63\)
2 \(23 x+29 y-29 z=23\)
3 \(23 x+29 y+3 z=55\)
4 \(31 x+37 y+3 z=71\)
Three Dimensional Geometry

121279 If the plane \(56 x+4 y+9 z=2016\) meets the coordinated axes in \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) then the centroid of the triangle \(\mathrm{ABC}\) is

1 \((12,168,224)\)
2 \((12,168,112)\)
3 \(\left(12,168, \frac{224}{3}\right)\)
4 \(\left(12,-168, \frac{224}{3}\right)\)
Three Dimensional Geometry

121280 The plane \(3 x+4 y+6 z+7=0\) is rotated about the line \(\overrightarrow{\mathbf{r}}=(\hat{\mathbf{i}}+\mathbf{2} \hat{\mathbf{j}}-\mathbf{3} \hat{\mathbf{k}})+(\mathbf{2} \hat{\mathbf{i}}-\mathbf{3} \hat{\mathbf{j}}+\hat{\mathbf{k}})\) unit the plane passes through origin. The equation of the plane in the new position is

1 \(4 x-5 y-2 z=0\)
2 \(x+2 y+4 z=0\)
3 \(6 x+3 y-4 z=0\)
4 \(x+y+z=0\)
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Three Dimensional Geometry

121275 In three dimensional space \(x^2-5 x+6=0\) represents

1 two points
2 two parallel planes
3 two parallel lines
4 a pair of non parallel lines
Three Dimensional Geometry

121276 If the equation of the plane passing through the line of intersection of the planes \(2 x-y+z=3\), \(4 x-3 y+5 z+9=0\) and parallel to the line \(\frac{x+1}{-2}=\frac{y+3}{4}=\frac{z-2}{5}\) is \(a x+b y+c z+6=0\). Then \(\mathbf{a}+\mathbf{b}+\mathbf{c}\) is equal to

1 14
2 12
3 13
4 15
Three Dimensional Geometry

121277 A plane \(x\) passes through the point \((1,1,1)\). If \(b, c\), a are the direction ratios of a normal to the plane, where \(\mathbf{a}, \mathbf{b}, \mathbf{c}(\mathbf{a}\lt \mathbf{b}\lt \mathbf{c})\) are the factors of 2001,then the equation of the plane is

1 \(29 x+31 y+3 z=63\)
2 \(23 x+29 y-29 z=23\)
3 \(23 x+29 y+3 z=55\)
4 \(31 x+37 y+3 z=71\)
Three Dimensional Geometry

121279 If the plane \(56 x+4 y+9 z=2016\) meets the coordinated axes in \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) then the centroid of the triangle \(\mathrm{ABC}\) is

1 \((12,168,224)\)
2 \((12,168,112)\)
3 \(\left(12,168, \frac{224}{3}\right)\)
4 \(\left(12,-168, \frac{224}{3}\right)\)
Three Dimensional Geometry

121280 The plane \(3 x+4 y+6 z+7=0\) is rotated about the line \(\overrightarrow{\mathbf{r}}=(\hat{\mathbf{i}}+\mathbf{2} \hat{\mathbf{j}}-\mathbf{3} \hat{\mathbf{k}})+(\mathbf{2} \hat{\mathbf{i}}-\mathbf{3} \hat{\mathbf{j}}+\hat{\mathbf{k}})\) unit the plane passes through origin. The equation of the plane in the new position is

1 \(4 x-5 y-2 z=0\)
2 \(x+2 y+4 z=0\)
3 \(6 x+3 y-4 z=0\)
4 \(x+y+z=0\)
Three Dimensional Geometry

121275 In three dimensional space \(x^2-5 x+6=0\) represents

1 two points
2 two parallel planes
3 two parallel lines
4 a pair of non parallel lines
Three Dimensional Geometry

121276 If the equation of the plane passing through the line of intersection of the planes \(2 x-y+z=3\), \(4 x-3 y+5 z+9=0\) and parallel to the line \(\frac{x+1}{-2}=\frac{y+3}{4}=\frac{z-2}{5}\) is \(a x+b y+c z+6=0\). Then \(\mathbf{a}+\mathbf{b}+\mathbf{c}\) is equal to

1 14
2 12
3 13
4 15
Three Dimensional Geometry

121277 A plane \(x\) passes through the point \((1,1,1)\). If \(b, c\), a are the direction ratios of a normal to the plane, where \(\mathbf{a}, \mathbf{b}, \mathbf{c}(\mathbf{a}\lt \mathbf{b}\lt \mathbf{c})\) are the factors of 2001,then the equation of the plane is

1 \(29 x+31 y+3 z=63\)
2 \(23 x+29 y-29 z=23\)
3 \(23 x+29 y+3 z=55\)
4 \(31 x+37 y+3 z=71\)
Three Dimensional Geometry

121279 If the plane \(56 x+4 y+9 z=2016\) meets the coordinated axes in \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) then the centroid of the triangle \(\mathrm{ABC}\) is

1 \((12,168,224)\)
2 \((12,168,112)\)
3 \(\left(12,168, \frac{224}{3}\right)\)
4 \(\left(12,-168, \frac{224}{3}\right)\)
Three Dimensional Geometry

121280 The plane \(3 x+4 y+6 z+7=0\) is rotated about the line \(\overrightarrow{\mathbf{r}}=(\hat{\mathbf{i}}+\mathbf{2} \hat{\mathbf{j}}-\mathbf{3} \hat{\mathbf{k}})+(\mathbf{2} \hat{\mathbf{i}}-\mathbf{3} \hat{\mathbf{j}}+\hat{\mathbf{k}})\) unit the plane passes through origin. The equation of the plane in the new position is

1 \(4 x-5 y-2 z=0\)
2 \(x+2 y+4 z=0\)
3 \(6 x+3 y-4 z=0\)
4 \(x+y+z=0\)