prove that cosa/1-sina+cosa/1+sina=2seca
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Given Equation is 
On cross-multiplication, we get





We know that 1/cos theta = sec theta
2 sec theta.
Hope this helps!
On cross-multiplication, we get
We know that 1/cos theta = sec theta
2 sec theta.
Hope this helps!
teja47:
how 2/costhetha=2secthetha
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