Answer to Question #16309 in Trigonometry for varshitha
if (sinA+cosA)=m and (secA+cosecA)=n , then prove that n(m.m -1)=2m
1
2012-10-11T11:23:59-0400
n(m*m-1)=2m
((1/sinA)+(1/cosA))(sin^2A+cos^2+2sinAcosA-1)=2(sinA+cosA)
((1/sinA)+(1/cosA)(2sinAcosA)=sinA+cosA
(sinA+cosA)*sinAcosA/sinAcosA=sinA+cosA
sinA+cosA=sinA+cosA
0=0
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