Two poles, one double in length of other, are standing opposite to each other at a distance of Y meter. If the angle of elevation from mid-point of the line joining their feat are complementary then what is the height of the shorter pole?

If $\mathcal{l}{\cos }^2\theta +m{\sin }^2\theta =\frac{{\cos }^2\theta (\cos e{c}^2\theta +1)}{\cos e{c}^2\theta -1},$ then what is the value of ${\tan }^2\theta$?

If $0^o<\theta <{90}^o$ and $\frac{\sin \theta }{\cos \theta }+\frac{\cos \theta }{\sin \theta }=2,$ then which of the following is equal to $\theta$?

Find minimum value of 4cos${60}^{\circ }$ + 3sin${60}^{\circ }$.

What are the components of (x²⁹ – x²⁴ + x¹³ – 1)?

If A={5,6,7} and B={1,2,3,4},Find the numbers of elements in the set A*B*B ?