cosec^2X-1 = (cosXcosecX)^2(trigonometry identity)?

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prove LHS=RHS

2007-04-21 20:35:39 · 2 answers · asked by abhishek p 1 in Science & Mathematics ➔ Mathematics

csc^2 - 1 = csc^2(1-sin^2) = (cos csc)^2

2007-04-21 20:38:58 · answer #1 · answered by hustolemyname 6 · 0⤊ 0⤋

LHS = 1 / sinÂ²x - 1
LHS = (1 - sinÂ²x) / sinÂ²x
LHS = cosÂ²x / sinÂ²x
LHS = cosÂ²x cosecÂ²x
LHS = (cos x.cosec x)Â² = RHS

2007-04-22 03:52:14 · answer #2 · answered by Como 7 · 0⤊ 0⤋