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Value of Cos square A+ cos square B +cosAcosB is equal to? If A+B=120°

Sanyogita , 5 Years ago
Grade 11
anser 1 Answers
Saurabh Koranglekar

Last Activity: 5 Years ago

Dear student

Instead of subjective approach lets try to use objective approach

Assume A= B = 60

Therefore eqn = 3(1/2)*(1/2)
Ie ans 3/4

Regards

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