Trigonometric F...

Choose the correct answer.
$$(1+{ \tan }^{ 2 }\theta ){ \sin }^{ 2 }\theta =$$

The value of $$\sum\limits_{r = 0}^9 {{{\sin }^2}\dfrac{{\pi r}}{{18}}} \;is\;equal\;to\;$$ 

If $$\sqrt { 2 } sin\theta -\sqrt { 2 } cos\theta +1=0$$ and $$\theta $$ is an acute angle, then the value of $$cosec\theta $$ is 

If $$\frac{1+cos\Theta }{1-cos\Theta }=\frac{p^{2}}{q^{2}}$$ then $$tan \Theta $$ =

The principal solutions of $$secx= \frac{2}{\sqrt{3}}$$   are _________

The value of $$\frac{cosA}{P1}+\frac{cosB}{P2}+\frac{cosC}{p3}$$ 

If the equitation $$1+sin^{2}px=cos x$$ has exactly one solution then p is ______

32 $$sin^{6}15^{0}-48sin^{4}15^{0}+18sin^{2}15^{0}=$$

If $$sec A=a+(\frac{1}{4a})$$ , then sec A + tan A is equal to 

If $$tan\Theta +cot\Theta =3$$ , find the value of $$tan^{2\Theta }+sin^{2\Theta }$$