[" If "sin A+sin2A=x" and "cos A+cos2A=y," then "(x^(2)+y^(2))],[(x^(2)+y^(2)-3)=]

If sin A+ sin 2A = x and cos A + cos 2A = y, then (x^(2)+y^(2)) (x^(2)+y^(2)-3)=

If sin A + sin 2A = x and cos A + cos 2A = y, then (x^(2)+y^(2)) (x^(2)+y^(2)-3)=

If sin A + sin 2A = x and cos A + cos 2A = y, then (x^(2)+y^(2)) (x^(2)+y^(2)-1)=

If sin A + sin 2A = x and cos A + cos 2A = y, then (x^(2)+y^(2)) (x^(2)+y^(2)-1)=

If sinA+sin2A=xandcosA+cos2A=y , then (x^(2)+y^(2))(x^(2)+y^(2)-3)=?

If sin A+sin 2A=x and cos A+cos 2A=y, then (x^2+y^2)(x^2+y^2-3)=

If x cos A + y sin A = m and x sin A - y cos A = n, then prove that : x^(2) + y^(2) = m^(2) + n^(2)

If sin x+sin y=a and cos x+cos y=b then cos(x-y) is equal to (1)/(2)(a^(2)+b^(2)-2)(B)(1)/(2)(a^(2)+b^(2)+2)

If x = a cos ^ (2) theta sin theta and y = a sin ^ (2) theta cos theta then ((x ^ (2) + y ^ (2)) ^ (3)) / (x ^ (2 ) and ^ (2)) =