Algebra Examples

$\sin (A) + \cos (A) \cdot \tan (A)$

Step 1

Rewrite in terms of sines and cosines, then cancel the common factors.

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Step 1.1

Reorder $\cos (A)$ and $\tan (A)$ .

$\sin (A) + \tan (A) \cdot \cos (A)$

Step 1.2

Rewrite $\cos (A) \cdot \tan (A)$ in terms of sines and cosines.

$\sin (A) + \frac{\sin (A)}{\cos (A)} \cos (A)$

Step 1.3

Cancel the common factors.

$\sin (A) + \sin (A)$

Step 2

Add $\sin (A)$ and $\sin (A)$ .

$2 \sin (A)$