Day 84: CBSE Class 12 Maths

1. A.
   2
2. B.
   1
3. C.
   0
4. D.
   3

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1. A.
   $\displaystyle\int_0^{2a} f\left(\dfrac{x}{2}\right) dx$
2. B.
   $\displaystyle\int_0^{a} f(x)\,dx$
3. C.
   $2\displaystyle\int_a^{0} f(x)\,dx$
4. D.
   $2\displaystyle\int_0^{a} f(x)\,dx$

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1. A.
   $e^x \sin x + C$
2. B.
   $-e^x \sin x + C$
3. C.
   $-e^x \cos x + C$
4. D.
   $e^x \cos x + C$

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1. A.
   $e^{-3\log x}$
2. B.
   $e^{\log\left(\frac{1}{x^3}\right)}$
3. C.
   $\frac{-1}{2x^2}$
4. D.
   $\frac{-1}{4x^4}$

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1. A.
   Both Assertion (A) and Reason (R) are true and the Reason (R) is the correct explanation of the Assertion (A).
2. B.
   Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of the Assertion (A).
3. C.
   Assertion (A) is true, but Reason (R) is false.
4. D.
   Assertion (A) is false, but Reason (R) is true.

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