## burhan101 Group Title Trig Identity one year ago one year ago

1. burhan101 Group Title

$\huge \frac{ 1 }{ \frac{ 1 }{ cosx }+\frac{ sinx }{ cosx } }= \frac{ 1 }{ cosx }-\frac{ sinx }{ cosx }$

2. dpaInc Group Title

simplify both left and right sides into 1 fraction... that's 1 way you can prove the left side is the same as the right side.

3. burhan101 Group Title

to get rid of the fraction over fraction, would this method be correct ? $\huge \frac{ 1 }{ \frac{ 1 }{ cosx }+\frac{ sinx }{ cosx } }$

4. burhan101 Group Title

$\huge =\frac{ \cos^2x }{ \cos^2x }$