document.write( "Question 755308: Verify: sin x+ (sin x*tan^2 x)= tan x*sec x \n" ); document.write( "
Algebra.Com's Answer #460037 by lwsshak3(11628)\"\" \"About 
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Verify: sin x+ (sin x*tan^2 x)= tan x*sec x
\n" ); document.write( "starting with LHS
\n" ); document.write( "sin x+ (sin x*tan^2 x
\n" ); document.write( "=sinx(1+tan^2x)
\n" ); document.write( "=sinxsec^2x
\n" ); document.write( "=sinx*secx*secx
\n" ); document.write( "=sinx*1/cosx*secx
\n" ); document.write( "=(sin/cos)*sec
\n" ); document.write( "=tanxsecx
\n" ); document.write( "verified LHS=RHS \n" ); document.write( "
\n" );