$$ \sqrt {sec^2{θ}+cosec^2{θ}}=?$$

$$ sin^2 5° + sin^2 10°+sin^2 15°+.....sin^2 85°+sin^2 90°$$ is equal to

If x tan45° cos30° = sin30° cos45°, then x is equal to - 

Find the value of $$\left({sin 35°\over cos55°} \right)^2+\left({cos55°\over sin 35°} \right)^2 \ -2 sin^{3}30°$$

If  $$ {2\ sinθ-cos θ\over {cosθ+sinθ}}=1$$, then value of cotθ is:

Find the value of (cosA - sinA)² + (cosA + sinA)²   -

If cos3A = X, then value of X?

If 4tanθ=3,the  value of $$ \left({4sinθ-2cosθ\over4sinθ+2cosθ}\right) $$ is:-