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एक त्रिभुज ABC में angleA=60^(@) तथा b:...

एक त्रिभुज ABC में `angleA=60^(@)` तथा `b:c=(sqrt(3)+1):2` है तो `(angleB-angleC)` का मान है

A

`15^(@)`

B

`30^(@)`

C

`22.5^(@)`

D

`45^(@)`

लिखित उत्तर

Verified by Experts

The correct Answer is:
B
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