`"Tan((pi)/(4)-theta)tan((pi)/(4)+theta)=`

tan((pi)/(4)+theta)xx tan((3 pi)/(4)+theta)=-1

tan ((pi)/(4)+theta) tan ((3pi)/( 4) + theta) is equal to

tan theta tan((pi)/(3)+theta)tan((pi)/(3)-theta)=tan3 theta

If (sin(theta+alpha))/(cos(theta-alpha))=(1-m)/(1+m), prove that tan((pi)/(4)-theta)tan((pi)/(4)-alpha)=m

If tan theta + tan((pi)/(3)+theta) + tan((-pi)/(3)+theta) = ktan 3 theta then the value of k is

(1-tan^(2)((pi)/(4)-theta))/(1+tan^(2)((pi)/(4)-theta))=sin2 theta

If tan theta=(3)/(4) and theta is not in first quadrant sin(sin((pi)/(2)+theta)-cot(pi-theta))/(tan((3 pi)/(2)-theta)-cos((3 pi)/(2)+theta))=

tan ((pi)/(4) + (theta)/(2)) + tan ((pi)/(4) -(theta)/(2)) is equal to

If sin[(pi)/(4)*cot theta]=cos[(pi)/(4)tan theta], then theta=

If f(theta)=sin(tan^(-1)((sin theta)/(sqrt(cos2 theta)))), where -(pi)/(4)