Question
How many persons are standing in a line, if all of them
are facing south? Some person are standing in a straight line. I  Only one person is standing to the right of A. Only two persons are standing between A and B. B is standing to the immediate left of C. C is standing exactly in the middle. II Only three person are standing to the right of C. Only two persons are standing between C and D. D is standing at the extreme left end.  The questions given below has one question and two statements marked I and II. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer :Solution
From statement I- Â Â Â Â Â Â Â Â Â Â Â Â Â Â From statement II-Â Â Â Â Â
 Answer: Option 3Â
If (sin A + 2cos A) = 4 cos (90° - A), then find the value of cot A.
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Solve for 0° ≤ θ ≤ 360°:
2 sin²θ + 3 sinθ − 2 = 0
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cot 13Ëš Â
 cot 14˚  ...If tan 4θ = cot 14θ, then find the value of cos 9θ.