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21 Jul 2007 21:00:30 IST
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prove thart (1+sin A-cos A)/(1+sin A+cosA) = tan (A/2)
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24 Jul 2007 00:02:24 IST
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dear amardeep,
convert A to A/2 as sinA=2sinA/2cosA/2 and cosA=(cos^2A/2-sin^2A/2)
also write 1 in both numeerator and denominator as sin^2A/2+cos^2A/2
we get tan(A/2)
rate if satisfied
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ameya s,
1 yr
iit bombay.
if you ever want to help me clean my room, go STUDY NOW!!! |
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