Question

pls answer to this question. frnds. i. will mark you brainliest.......


pls pls​

Answer 1

Answer:

by rationalizing the denominator of lhs,

√1+ cosa/1-cosa ×1+cosa/1+cosa

√(1+cosa) ^2/1-cos^2a

1+cosa /sina ( 1/sina=coseca and cosa/sina =cota)

coseca+cota

hence proved

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