solve this?????
its urgent....
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Step-by-step explanation:
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1
Answer:
-1
Step-by-step explanation:
- Cosec 60°=1/sin 60°= 2/√3
- (Cosec 60°) / 2= 1/√3
- cos 45°= 1/√2.
√6•(√2+√3)[(Cosec 60°)/2-cos 45°]
=√6•(√2+√3)•(1/√3-1/√2)
=√6•(√2+√3)•(√2-√3)/√6
=(√2+√3)•(√2-√3)
=(2-3)= -1
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