Day 453: MHT-CET Maths

1. A.
   $0.3$
2. B.
   $0.4$
3. C.
   $0.5$
4. D.
   $0.6$

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1. A.
   $x = \dfrac{3 + \sqrt{5}}{2}, x = \dfrac{3 - \sqrt{5}}{2}$
2. B.
   $x = \dfrac{-3 + \sqrt{5}}{2}, x = \dfrac{-3 - \sqrt{5}}{2}$
3. C.
   $x = \dfrac{3 + \sqrt{3}}{2}, x = \dfrac{3 - \sqrt{3}}{2}$
4. D.
   $x = \dfrac{2 + \sqrt{5}}{2}, x = \dfrac{2 - \sqrt{5}}{2}$

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1. A.
   $\sqrt{2}$
2. B.
   $\sqrt{5}$
3. C.
   $2\sqrt{2}$
4. D.
   $2\sqrt{5}$

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1. A.
   $\pi$
2. B.
   $\dfrac{7\pi}{2}$
3. C.
   $0$
4. D.
   $-1$

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

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