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Cos(A+B)×Cos(A-B) please convey the answer for this question from geometry I couldn't get this

Cos(A+B)×Cos(A-B) please convey the answer for this question from geometry I couldn't get this

Grade:12th pass

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
2 years ago
Dear student

Do you mean to cross multiply trigonometric functions ?
Please specify. How ever simplification relating to trigonometric function is represented as below
576-1697_New Doc 2019-04-06 09.11.25.jpg

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