prove that sec^4A (1-sin^4A ) -2tan^2A = 1
You asked:
Prove or disprove that the equation $\sec^{4}{\left(A \right)} \left(1 - \sin^{4}{\left(A \right)}\right) - 2 \tan^{2}{\left(A \right)} = 1$ is an identity.
prove that sec^4A (1-sin^4A ) -2tan^2A = 1
You asked:
Prove or disprove that the equation $\sec^{4}{\left(A \right)} \left(1 - \sin^{4}{\left(A \right)}\right) - 2 \tan^{2}{\left(A \right)} = 1$ is an identity.