(1/1+cos ø )+(1/1-cos ø) = 2 cosec²ø
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Step-by-step explanation:
To prove-: (1/1+cos ø )+(1/1-cos ø) = 2 cosec²ø
PROOF-:
Taking LHS
=> (1/1+cos ø )+(1/1-cos ø)
=> take LCM
=> (1-cos ø + 1+cos ø) / {(1-cos ø)(1+cos ø)}
=> 2/ (1-cos^2 ø)
=> 2/ sin^2 ø
=>2 cosec^2 ø =RHS
HENCE PROVED.
PLS MARK IT BRAINLIEST
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