Trigonometry Examples

${(\sec (b) - \tan (b))}^{2} = (1 - \frac{\sin (b)}{1 + \sin (b)})$

Step 1

The provided equation is not an identity.

${(\sec (b) - \tan (b))}^{2} = 1 - \frac{\sin (b)}{1 + \sin (b)}$ is not an identity