`sec (pi + theta)` is -

If cos theta =(3)/5 and theta is not in the first quadrant , then (5 tan(pi+ theta ) + 4 cos (pi-theta ))/( 5 sec ( 2pi- theta ) - 4 cot (2pi+ theta ))=

sec ((pi)/(4) + theta ) . Sec ((pi)/(4) - theta ) is equal to

Prove that sec(pi/4+theta)sec(pi/4-theta)=2 sec 2theta

Convert the following into simplest form (iv) sec ( 4pi - theta)

What is the value of ("cosec "(pi+theta)cot{(9pi//2-theta)}"cosec"^(2)(2pi-theta))/(cot(2pi-theta)sec^(2)(pi-theta)sec{(3pi//2)+theta})

Prove that: (cos(2 pi+theta)csc(2 pi+theta)tan(pi/2+theta))/(sec(pi/2+theta)cos theta cot(pi+theta))=1

tan ((pi)/(4) + (theta)/(2)) + tan ((pi)/(4) -(theta)/(2)) is equal to ............... A) sec theta B) 2 sec theta C) sec "" (theta)/(2) D) -2 sec theta

Prove that: sqrt((1-sintheta)/(1+sintheta))= sec theta- tan theta when (-pi/2) < theta < pi/2 and -sec theta+tan theta when pi/2< theta< (3pi)/2

Prove that: sqrt((1-sintheta)/(1+sintheta))= sec theta- tan theta when (-pi/2) < theta < pi/2 and -sec theta+tan theta when pi/2< theta< (3pi)/2

If sec theta=2cos theta , where (pi/2) lt theta lt pi , then what is the value of theta ?