cos 45/sec30+cosec30
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Answer:
= 1/√2 // 2/√3 + 2
= 1/√2 // 2 + 2√3/√3
= √3 // √2(2 + 2√3)
= √3 // 2√2 + 2√6
= √3(2√2 - 2√6) // (2√2)^2 - (2√6)^2
= 2√6-6√2 // 8 - 24
= - 2(3√2 - √6) // -16
= 3√2 - √6 // 8
Proved....
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