Math, asked by srujeshnachittampall, 5 months ago

solwe that costeta/1-sinteta+1-sinteta/costeta=2secteta

Answers

Answered by ayushimishra0804

0

Step-by-step explanation:

L.H.S=cos theta/(1+sintheta)+costheta/(1-sintheta)#

=(costheta(1-sintheta)+costheta(1+sintheta))/(1-sin^2theta)

=(costheta-costheta*sintheta+costheta+costheta*sintheta)/cos^2theta

=(costheta-cancel(costheta*sintheta)+costheta+cancel(costheta*sintheta))/cos^2theta

=(2costheta)/cos^2theta

=2/costheta

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