Question

Let f(x) = 2 tan¹ x and g(x) be a differentiable function satisfying g x+2y_g(x)+2g(y) 3 3

ye R and g'(0) = 1 and g(0)= 2. The number of integers 'x' satisfying f(g(x)) - 5f (g(x))+4>0 where x (-10, 20) is equal to

(A) 5 (C) 7



(B) 6 (D) 8
Stap by stap solution

Answer 1

I have no idea what

g x+2y_g(x)+2g(y) 3 3

means