If sin x sinh `y = cos theta, cos x coshy = sin theta ` then `cosh^2 y + cos^2 x=`

If sin x sin h y = cos theta and cos x cos h y = sin theta then cos h^(2) y + cos^(2)x =

If sin x cosh y = cos theta, cos x sinh y = sin theta then sinh ^ (2) y =

If sin x cosh y = cos theta, cos x sinh y = sin theta then sinh^2 y =

IF sin x cos h y= cos theta, cos x sin h y= sin theta and 4 tan x=3 .Then, sinh^2y=

Find dy/dx when x = cos theta + cos 2 theta, y = sin theta + sin 2 theta)

x = "cos" theta - "cos" 2 theta, y = "sin" theta - "sin" 2 theta

If x = cos theta cos phi + sin theta sin phi cos psi , y = cos theta sin phi - sin theta cos phi cos psi and z = sin theta sin psi , then x^(2) + y^(2) + z^(2) equals :

If sinh x = costheta and sin theta = 2//3 than cosh x =

If x sin ^3 theta +y cos^3 theta = sin theta cos theta and x sin theta =y cos theta then x^2 +y^2 is