Q. 104.0( 15 Votes )

If tanA = n tanB

Answer :

FORMULA: -


(i) cosec2B – cot2B = 1


(ii) sin2A + cos2A = 1


TanA = ntanB




sinA = msinB




Now, cosec2B – cot2B = 1






m2 – n2cos2A = sin2A


m2 – n2cos2A = 1 – cos2A


– n2cos2A + cos2A = 1 – m2


– cos2A(n2 – 1) = – (m2 – 1)



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