CBSE 12th Math (Term 1) Paper 2021-22 | Class 12 Year Wise Previous Years Questions

CBSE 12th Math (Term 1) Paper 2021-22

MCQ (Single Correct Answer)

-0

If for the matrix $$A = \left[ {\matrix{ \alpha & { - 2} \cr { - 2} & \alpha \cr } } \right]$$, | A³ | = 125, then the value of $$\alpha$$ is

$$\pm$$ 3

$$-$$ 3

$$\pm$$ 1

CBSE 12th Math (Term 1) Paper 2021-22

MCQ (Single Correct Answer)

-0

If $$y = \sin (m{\sin ^{ - 1}}x)$$, then which one of the following equations is true?

$$(1 - {x^2}){{{d^2}y} \over {d{x^2}}} + x{{dy} \over {dx}} + {m^2}y = 0$$

$$(1 - {x^2}){{{d^2}y} \over {d{x^2}}} - x{{dy} \over {dx}} + {m^2}y = 0$$

$$(1 + {x^2}){{{d^2}y} \over {d{x^2}}} - x{{dy} \over {dx}} - {m^2}y = 0$$

$$(1 + {x^2}){{{d^2}y} \over {d{x^2}}} + x{{dy} \over {dx}} - {m^2}x = 0$$

CBSE 12th Math (Term 1) Paper 2021-22

MCQ (Single Correct Answer)

-0

The principal value of $$[{\tan ^{ - 1}}\sqrt 3 - {\cot ^{ - 1}}( - \sqrt 3 )]$$ is

$$\pi$$

$$ - {\pi \over 2}$$

$$2\sqrt 3 $$

CBSE 12th Math (Term 1) Paper 2021-22

MCQ (Single Correct Answer)

-0

The maximum value of $${\left( {{1 \over x}} \right)^{x}}$$ is

e^1/e

$${\left( {{1 \over e}} \right)^{1/e}}$$

e^e

Class 12 Papers

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2021