Hi there! Can I get some help please? Thanks!

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1 Answer
P dilip_k
Sep 25, 2017

#LHS=sectheta/(csctheta-cottheta)-sectheta/(csctheta+cottheta)#

#=sectheta(1/(csctheta-cottheta)-1/(csctheta+cottheta))#

#=sectheta((csctheta+cottheta)-(csctheta-cottheta))/(csc^2theta-cot^2theta)#

#=(sectheta*2cottheta)/1#

#=(sectheta*2costheta)/sintheta#

#=2/sintheta=2csctheta=RHS#

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