plz give me the answer quickly.
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let,y=1+sin@-cos@/1+sin@+cos@=(2sin@/2cos@/2+2sin^2@/2)/2sin@/2cos@/2+2cos^2@/2
=sin@/2(cos@/2+sin@/2)/cos@/2(sin@/2+cos@/2)=tan@/2
y^2=tan^2@/2=2sin^2@/2/2cos^2@/2=(1-cos@/1+cos@)^2(proved)
=sin@/2(cos@/2+sin@/2)/cos@/2(sin@/2+cos@/2)=tan@/2
y^2=tan^2@/2=2sin^2@/2/2cos^2@/2=(1-cos@/1+cos@)^2(proved)
subhraghosh:
you can copy the answer in a paper, then u will understand it
okk
the only formula is of sinx=2sinx/2cosx/2 & cosx=1-2sin^2x/2
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I think that it will help you out ........
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plz give me the full answer
sorry for the late
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