1

JEE Main 2021 (Online) 20th July Morning Shift

Numerical

+4

-1

Out of Syllabus

Let P be a plane passing through the points (1, 0, 1), (1, $$-$$2, 1) and (0, 1, $$-$$2). Let a vector $$\overrightarrow a = \alpha \widehat i + \beta \widehat j + \gamma \widehat k$$ be such that $$\overrightarrow a $$ is parallel to the plane P, perpendicular to $$(\widehat i + 2\widehat j + 3\widehat k)$$ and $$\overrightarrow a \,.\,(\widehat i + \widehat j + 2\widehat k) = 2$$, then $${(\alpha - \beta + \gamma )^2}$$ equals ____________.

Your input ____

2

JEE Main 2021 (Online) 18th March Evening Shift

Numerical

+4

-1

Out of Syllabus

Let the mirror image of the point (1, 3, a) with respect to the plane $$\overrightarrow r .\left( {2\widehat i - \widehat j + \widehat k} \right) - b = 0$$ be ($$-$$3, 5, 2). Then, the value of | a + b | is equal to ____________.

Your input ____

3

JEE Main 2021 (Online) 18th March Evening Shift

Numerical

+4

-1

Out of Syllabus

Let P be a plane containing the line $${{x - 1} \over 3} = {{y + 6} \over 4} = {{z + 5} \over 2}$$ and parallel to the line $${{x - 1} \over 4} = {{y - 2} \over { - 3}} = {{z + 5} \over 7}$$. If the point (1, $$-$$1, $$\alpha$$) lies on the plane P, then the value of |5$$\alpha$$| is equal to ____________.

Your input ____

4

JEE Main 2021 (Online) 18th March Morning Shift

Numerical

+4

-1

Out of Syllabus

Let the plane ax + by + cz + d = 0 bisect the line joining the points (4, $$-$$3, 1) and (2, 3, $$-$$5) at the right angles. If a, b, c, d are integers, then the

minimum value of (a

minimum value of (a

^{2}+ b^{2}+ c^{2}+ d^{2}) is _________.Your input ____

Questions Asked from 3D Geometry (Numerical)

Number in Brackets after Paper Indicates No. of Questions

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