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ICSE Class 10 Answered

problem
Asked by mahesh joshi | 11 Mar, 2012, 01:49: PM
Expert Answer
Taking LHS
(sinA-1/sinA)(cosA-1/cosA)(sinA/cosA + cosA/sinA)
= (sin2A - 1)/sinA . (cos2A-1)/cosA . (sin2A + cos2A)/sinAcosA
= -cos2A/sinA . -sin2A/cosA . 1/sinAcosA = 1 = RHS
Answered by | 11 Mar, 2012, 02:00: PM
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