cos∅ + sin∅ = √2 cos∅ show that cos∅ - sin∅ = √2 sin∅
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there could be many ways to solve it. It is one of them. Hope it works..
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pamathew31:
what did you do in the 3rd step ?
how did sin theta go to the RHS ?
bro use the identity and substitute the value
in order to get (cosx-sinx)^2 i added sin^2x both sides
ok, i m sending another method..
thnx man
wlcm
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