Math, asked by nikhilkumaryadav77, 4 months ago

2 cos15⁰.cos45⁰.cosec75⁰

Answers

Answered by thummalanithinkumary

3

Answer:

2cos 15⁰.cos 45⁰.cosec75⁰

2 cos15⁰.cos 45⁰.1/cos 15⁰

2.cos 45⁰=√2 by rationalising 2/√2

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