Q. 1 C4.1( 14 Votes )

# Evaluate<

By trigonometric identity, we can say

cosec (90° - θ) = sec θ

Replace θ by 59°.

We get

cosec (90° - 59°) = sec 59°

cosec 31° = sec 59°

Now, cosec 31° - sec 59° = sec 59° - sec 59°

cosec 31° - sec 59° = 0

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