Question

Evaluate Cos 45°/sec^230°+cosec^230°

Answer 1

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Cos45°=1/root2

Sec30°=2/root3

Cosec30°=2

Cos45°/sec^30°+cosec^30°

=1/root2/(2/root3)^2+(2)^2

=1/root2/2/9+4

=1/root2×9/2+4

=9/2root2+4

=(9+8root2)/2root2

Answer 2

Answer:

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