Inverse Trigonometric FunctionMedium

Question

If cos-1(a) + cos-1(b) + cos-1(c) = 3π and f (1) = 2, f (x + y) = f (x) f (y) for all x, y; then a2f(1) + b2f(2) + c2f(3)  +  is equal to -

Options

A.0
B.1
C.2
D.3

Solution

-

Create a free account to view solution

View Solution Free
Topic: Inverse Trigonometric Function·Practice all Inverse Trigonometric Function questions

More Inverse Trigonometric Function Questions

If θ = cot-1 − tan-1 , then sinθ =...is equal to -...tan (cos-1 x) is equal to...tan =...If sin-1 x + cot-1, then x is equal to-...