Prove that (1+sinA) 2/cos2A=1+sinA/1-sinA
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L.H.S,
=(1+sinA)^2/cos^2A
Since(cos^2A=1-sin^2A)
=(1+sinA)^2/(1-sin^2A)
=(1+sinA)^2/(1-sinA)^2
square square gets cancelled
=(1+sinA)/(1-sinA)
R.H.S
Hence Proved.
ShriyaSharma1522:
see bcoz of identity cos^2A became 1-sin^2A
so we can write it as 1^2-(sinA)^2
ssss
so we can write it as (1-sinA)^2
got it...!!!:)
tanq u..........
u didn't marked it as brainliest??:((
its okay:)
yeah I'll now
ok:)
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