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Sum on trigonometry with attached image . 1/1-sinA +1/1+sinA =2sec^2A.I need help to solve these sums plz

Nupur chaudhari , 6 Years ago
Grade 12th pass
anser 1 Answers
NIKHIL GHODKE

Last Activity: 6 Years ago

mulitiplying numerator and denominator of ( 1/1-sinx) by 1+sinx
and
mulitiplying numerator and denominator of ( 1/1+sinx) by 1 - sinx
we get 
(1+sinx+1-sinx)/1-sin^2x
=2/cos^2x
=2sec^2x
simple right
 
 
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