Find the formula of   `Sin( 90^(@) - theta )`

Write the formula : Sin( 3theta )

Find the value of (sin theta)/(cos (90^@+theta))+(sin theta)/(sin (180^@+theta))+(tan(90^@+theta))/(cot theta)

Find the value of x: i) xcot(90^(@)+theta)+tan(90^(@)+theta)sintheta+"cosec"(90^(@)+theta)=0 ii) "cosec"(90^(@)+theta)+x costhetacot(90^(@)+theta)=sin(90^(@)+theta)

What is the simplified value of sin^(2) (90- theta) - [({sin(90-theta) sin theta})/(tan theta)] ?

What is the value of : (sin(90^(@)-theta)sec(180^(@)-theta)sin(-theta))/(sin(180^(@)+theta)cot(360^(@)-theta)"cosec "(90^(@)+theta)) :

Find the value of costhetacos(90^(@)-theta)-sinthetasin(90^(@)-theta)

sin(90^circ+theta) is

Evaluate : sin theta cos theta - (sin theta cos (90^(@) - theta) cos theta)/( sec (90^(@) - theta)) - (cos theta sin (90^(@) - theta) sin theta)/( cosec (90^(@) - theta))

Find 'x' from the equation: "cosec"(90^(@)-theta)-x "sin"(90^(@)-theta)"tan"(180^(@)+theta)="sin"(90^(@)+theta) .