Question

Show that$\frac{(\frac{cos^3x}{\sqrt{cos2x} } (-3tanx+tan2x))}{(\frac{sin^3x}{\sqrt{cos2x} } (3cotx+tan2x))} = -cot3x$ .

Answer 1

Step-by-step explanation:

this might help (with step by step explanation)

The method will be shorter if you know appropriate formula for cot trigonometric function.

Answer 2

Answer:

refer ncert text book of class 12 chapter 5

Step-by-step explanation: