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-(sinx*tanx)

 Feb 4, 2015

Best Answer 

 #1
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-(sinx*tanx) =

-sinx (sinx / cosx) =

-sin^2x / cosx =

[cos^2x - 1 ] / cosx =

1 - secx

 

 Feb 4, 2015
 #1
avatar+128599 
+5
Best Answer

-(sinx*tanx) =

-sinx (sinx / cosx) =

-sin^2x / cosx =

[cos^2x - 1 ] / cosx =

1 - secx

 

CPhill Feb 4, 2015

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