Math, asked by Shivamkumar821002448, 1 year ago

Plzz solve this fast

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Answered by piyushsarangi2013
0

you can also use tan^2 X + 1 = sec^2 X

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Answered by Abida6786
0

tanA=20/21

so sinA=20/29

cosA=21/29

1-sinA+cosA/1+sinA+cosA

=1-20/29+21/29/1+20/29+21/29

= 1+1/29/1+41/29

=29+1/29/29+41/29

=30/70

=3/7

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