Day 156: MHT-CET Maths

1. A.
   $\dfrac{1}{2}$
2. B.
   $-\dfrac{1}{2}$
3. C.
   $\dfrac{3}{2}$
4. D.
   $-\dfrac{3}{2}$

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1. A.
   $(-2\sqrt{3}, 3)$
2. B.
   $(2\sqrt{3}, -3)$
3. C.
   $(3, 2\sqrt{3})$
4. D.
   $(2\sqrt{3}, 2)$

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1. A.
   $\cos 2\theta + i\sin 2\theta$
2. B.
   $(\cos 2\theta + i\sin 2\theta)^4$
3. C.
   $\cos 4\theta + i\sin 4\theta$
4. D.
   $(\cos 4\theta + i\sin 4\theta)^{-2}$

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1. A.
   increases on R
2. B.
   decreases on R - (4, 5)
3. C.
   decreases on $(-\infty, -3] \cup (4, 5)$
4. D.
   increases on $(-3, \infty)$

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1. A.
   $(-\infty, 0), (0, \infty)$
2. B.
   $(0, \infty), (-\infty, 0)$
3. C.
   $(-1, 0), (0, \infty)$
4. D.
   $(0, \infty), (-1, 0)$

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