Question 1104470
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Work on the right hand side to make it the same as the left hand side...<br>
{{{tanx^2 - sinx^2}}}<br>
= {{{sinx^2/cosx^2-sinx^2}}}  [change to sinx and cosx]<br>
= {{{(sinx^2-sinx^2*cosx^2)/cosx^2}}}  [common denominator...]<br>
= {{{(sinx^2(1-cosx^2))/cosx^2}}}   [common factor...]<br>
= {{{(sinx^2*sinx^2)/cosx^2}}}   [basic trig identity]<br>
= {{{sinx^2*(sinx^2/cosx^2)}}}<br>
= {{{sinx^2*tanx^2}}}<br>