(tan-cot)² +2 =sec²+cosec²-2
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Solution:-
L.H.S
(tan-cot) ^2 +2
tan^2 +cot^2 - 2tan.cot +2
1+sec^2 + 1+cosec^2 - 2 +2
(sec^2 +cosec^2 +2) ans
L.H.S = R.H.S
L.H.S
(tan-cot) ^2 +2
tan^2 +cot^2 - 2tan.cot +2
1+sec^2 + 1+cosec^2 - 2 +2
(sec^2 +cosec^2 +2) ans
L.H.S = R.H.S
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