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If coax is expressed in the form of acos(4x)+bcos(2x)+c, where a,b and c are constant then the value of (a+b+c), is equal to(A) 1. (B) 11/8. (C) 7/4. (D)2

If coax is expressed in the form of acos(4x)+bcos(2x)+c, where a,b and c are constant then the value of (a+b+c), is equal to(A) 1. (B) 11/8. (C) 7/4. (D)2

Grade:11

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Dear student

Put x = 0

1 = a+b+c

Ans 1

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