The curve represented by `x = ae^theta, y = be^(-theta), theta in R` is

The curve represented by x=acos h theta , y=bsin h theta , is

The curve represented by x=acos h theta , y=bsin h theta , is

The curve represented by x= sec theta + tan theta ,y= sec theta -tan theta is

The curve represented by x=a(cosh theta+sinh theta), y=b(cosh theta-sinh theta) is

The curve represented by x= a( cos h theta + sin h theta) , y =b ( cos h theta - sin h theta) is

Find the equation of the normal to the curve given by x = cos^3theta , y = sin^3theta at theta=pi/4

The slope of the nomal to the curve x = a(theta - sin theta), y = a(1-cos theta) at theta = pi/2 is

If the tangent to the curve = x = a(theta +sin theta), y = a(1+cos theta ) "at" theta = pi/3 makes an angle alpha with x - axis then alpha =