Prove that (Sec A-1)/(sec A+1)=(1-cosA)/1+cos A)
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lhs=1/cos-1/1cos+1
1-cos/cos/1+cos/cos
1-cos/1+cos
hence proved
1-cos/cos/1+cos/cos
1-cos/1+cos
hence proved
Seanna:
Sorry I can't understood can u answer this again..plzz
yes
LHS= sec-1/sec+1 , 1/cos-1/1/cos+1 (sec=1/cos) , take lcm 1-cos/cos/1+cos/cos. , then cos are cancel , 1-cos/1+cos , hence proved
Thank you..
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