Trigonometric RatiosHard

Question

If sin A, cos A and tan A are in G.P., then cos3A + cos2A is equal to-

Options

A.1
B.2
C.4
D.None of these

Solution

-

Create a free account to view solution

View Solution Free
Topic: Trigonometric Ratios·Practice all Trigonometric Ratios questions

More Trigonometric Ratios Questions

If cosα + cosβ = 0 = sinα + sinβ, then cos2α + cos2β is equal to -...cos 24o + cos 5o + cos 175o + cos 204o + cos 300o =...2 sinsin =...cos 52o + cos 68o + cos 172o =...If a = sin 170o + cos 170o, then -...