If x =${7.5}^{\circ }$ then find the value of $\frac{\cos x-\cos 3x}{\sin 3x-\sin x}$

If sin^ 4 x/2+cos^4 x/3 =1/5 then

For 0 lt theta lt pi/2, the solutions of sigma(m-1)^(6)"cosec"(theta+(...

The maximum value of the expression 1/(sin^2 theta + 3 sin theta cos t...

The positive integer value of n gt 3 satisfying the equation (1)/(sin(...

Let theta, varphi epsilon [0,2pi] be such that 2 cos theta(1-sin varph...

The number of distinct solutions of the equation 5/4cos^(2)2x + cos^4 ...

The value of underset(k=1) overset(13)Sigma(1)/(sin ((pi)/(4)+(k-1)...

If alpha and beta are non-zero real number such that 2(cos beta-cos al...

Let a ,\ b ,\ c be three non-zero real numbers such that the equati...