Prove that `(asintheta+bcostheta)^2+(acostheta-bsintheta)^2=a^2+b^2`

If asintheta+bcostheta=c , find acostheta-bsintheta=?

If cottheta=(b)/(a) ,show that (asintheta-bcostheta)/(asintheta+bcostheta)=(a^(2)-b^(2))/(a^(2)+b^(2)) .

Evaluate (a+bcostheta)^2+(bsintheta)^2

If asintheta+bcostheta=c , then acostheta-b sintheta is equal to

If btantheta=a , the value of (asintheta-bcostheta)/(asintheta+bcostheta) (a) (a-b)/(a^2+b^2) (b) (a+b)/(a^2+b^2) (c) (a^2+b^2)/(a^2-b^2) (d) (a^2-b^2)/(a^2+b^2)

If ((asintheta-bcostheta)/(asintheta+bcostheta))=((a^2-b^2)/(a^2+b^2))^k and tan theta=a/b then k=

If (9a)/(costheta)+(5b)/(sintheta)=56 and (9asintheta)/(cos^(2)theta)-(5bcostheta)/(sin^(2)theta)=0 If the value of [(9a)^(2/3)+(5b)^(2/3)]^(3)=(8K)^(2) Then K is ………..

If DeltaABC having vertices A (acostheta_1, asintheta_1), B (acostheta_2, asintheta_2), and C (acostheta_3, asintheta_3) are equilateral triangle, then prove that cos theta_1 + costheta_2 + cos theta_3 = 0 and sintheta_1 + sintheta33

If (a costheta_1,asintheta_1),(acostheta_2,a sintheta_2) , and (acostheta_3a sintheta_3) represent the vertces of an equilateral triangle inscribed in a circle. Then.