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Grade: 11

                        

Let cos alpha+ cos beta+ cos gamma=0= sin alpha + sin beta + sin gamma ...Then1).cos2alpha+ cos 2beta + cos2 gamma2).sin2alpha+sin2beta + sin 2 gammaPlz anser this que as soon as possible

3 years ago

Answers : (1)

Saurabh Koranglekar
askIITians Faculty
8397 Points
							Dear student

cos2alpha+ cos 2beta + cos2 gamma =0

sin2alpha+sin2beta + sin 2 gamma = 0

Regards
one year ago
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