Trigonometric F...

The value of $$\dfrac{\cos^{2}\theta+\tan^{2}\theta\ -1}{\sin^{2}\theta}$$ is

If $${ cosec }\theta -cot\theta =p$$, then $$cosec\theta +cot\theta =$$

The value of $$\sin \theta$$ is not equal to

The value of $$\sin\theta$$ is not equal to

If $$x_{1}$$ and $$x_{2}$$ are two distinct roots of the equation $$a\cos x+b\sin x=c$$, then $$\tan\dfrac {x_{1}+x_{2}}{2}$$ is equal to

The values of x in $$\left(0, \dfrac{\pi}{2}\right)$$ satisfying the equation $$\sin x\cos x=\dfrac{1}{4}$$ are ________.

The angles of a triangle are in $$\displaystyle AP$$ and the ratio of the number of degrees in the least to the number of radius in the greatest is $$\displaystyle 60 : \pi$$. The smallest angle is

$$\sin 15^{\circ} = $$

What is $$\cot(\dfrac{A}{2})-\tan(\dfrac{A}{2})$$ equal to ?

If $$ x + 1 / x = 2 $$ , the principal value of $$ sin^{-1}x $$ is