Question: Mark $(\sqrt{)}$ against the correct answer in the following:
If $y=\sqrt{\sin x+\sqrt{\sin x+\sqrt{\sin x+}}} \ldots \infty$ then $\frac{d y}{d x}=?$
A. $\frac{\sin x}{(2 y-1)}$
B. $\frac{\cos x}{(y-1)}$
C. $\frac{\cos x}{(2 y-1)}$
D. none of these
Solution:
