kyleigh85
28.09.2019 •
Mathematics
How to simplify tan(x)/ cos(x)-sec(x)
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Ответ:
tanx/(cosx-1/cosx)
tanx/cos^2x-1)1-sin^2x=cos^2x
-tanx/sin^2x
-(sinx/cosx)/sin^2x
-1/sinxcosx
multiply 2/2
-2/2sinxcosxsin2x=2sincosx
-2/sin2x1/sinx=cosecx
-2cosec2x
Ответ:
Wow
Step-by-step explanation: