List of top Mathematics Questions on Trigonometry asked in AP ECET Metallurgical Eng, AP ECET ECE

In $\triangle ABC$, if $\sin A = \sin^{2} B$ and $2 \cos^{2} A = 3 \cos^{2} B$ then the triangle ABC is

Sec 855$^{\circ}$ =}

The number of solutions of $\sin x = \frac{x}{10}$ is

Which of the following is not the solution of the equation $\sin 5x = 16 \sin^{5} x (n \in Z)?$

$\frac{\pi}{2} \le \theta \le \frac{3\pi}{4}$ then $\cos^{-1}(\frac{5}{13} \sin \theta + \frac{12}{13} \cos \theta) =$

If $sin \theta + cos \theta = 1/5$ and $0 \le \theta < \pi$ then $tan \theta$ is

If $f(x) = sin^{6}x + cos^{6}x$ then the range of $f(x)$ is

$cos 20^{\circ} + cos 80^{\circ} - \sqrt{3} cos 50^{\circ} =$

If $A = \sin 45^{\circ} + \cos 45^{\circ}$ and $B = \sin 44^{\circ} + \cos 44^{\circ}$ then which of the following is TRUE}

If A, B, C are angles of a triangle such that $\cot \frac{A}{2} = 3 \tan \frac{C}{2}$ then $\sin A, \sin B, \sin C$ are in}

$\frac{d}{dx} [\tan^{-1} x] =$

Principle value of $\cot^{-1}(-1)$ is

In a $\Delta ABC$, $\sum a^2 \cos(B - C) =$

In a $\Delta ABC$, if $a=13, b=14$ and $c=15$ then the value of $\tan \left(\frac{A}{2}\right)$ is

The value of $\sin 45^\circ$ is

In a triangle $\Delta ABC$, the value of $\cos \left(\frac{B+C}{2}\right)$ in terms of angle $A$.

In any $\Delta ABC$, $\tan \frac{B+C}{2} =$

If $2 \cos \theta = x + \frac{1}{x}$ then $2 \cos 3\theta =$

$\sin 15^\circ =$

If $-1 \leq x \leq 1$, then $\cos^{-1} x + \sin^{-1} x =$

If $\tan A = \frac{4}{3}$ then the value of $\cos 2A$ is