The equation sinx+ cosx = 2 has

Sinθ*cosecθ =

The value of cos 1^o cos 2^o cos 3^o .... cos 100^o =

1+tan²θ =

The minimum value of 5 sin 2 θ + 4 cos 2 θ is

Sin 90^o = 

____________=1+tan²θ

If A, B, C, D are the angle of a cyclic quadrailater , then cos A + cos B + cos C+ cos D is equal to

Cos (-1760⁰) =

(1+ tanA)² + (1-tanA)² =