Biology, asked by dharun54, 1 year ago

please tell me the answer​

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Answered by ranjitasahu391
1

Soln:-

=sin80°/cos10° + sin59° × sec31°

=sin80°/cos(90°-80°) + sin59° × 1/cos31°

[since (cos 90°-theta)=sin theta &

sec theta= 1/cos theta ]

=sin80°/ sin80° + sin 59° × 1/ cos (90°-59°)

=1 + sin 59° × 1/ sin 59°

[ since cos (90°- theta )=sin theta ]

=1+1

=2

HOPE IT WILL BE HELPFUL

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