Question

solve this problem



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Answer 1

tantheta. +sectheta+1

sectheta+1. tantheta

sin. 1+cos

cos. + cos

1+cos. sin

cos. cos

sin. + 1+cos

1+cos. sin

sin^2+(1+cos)^2/sin+sincos

sin^2+1+cos^2+2cos/sin(1+cos)

2(1+cos)/sin(1+cos)

2/sin

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