1.

Evaluate - cos 45°/sec30°+cosec30°​

Answer»

Step-by-step EXPLANATION:

Let's WRITE the values first.

cos 45 = 1 / root 2

sec 30 = 2 / root 3

cosec 30 = 2

Therefore,

(cos45) ÷ (sex 30 + cosec 30) = (1/root2) ÷ (2/root30 + cosec30)

= root 3 / 2root2 + 2root6

conjucating,

= - (root6 - 4 root2) / 8



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