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If f(x) = [cos(x) + 5cos(3x) + cos(5x)]/[cos(6x) + 6cos(4x) + 15cos(2x) + 10] then find the value of f(0) + f'(0) + f''(0)

If f(x) = [cos(x) + 5cos(3x) + cos(5x)]/[cos(6x) + 6cos(4x) + 15cos(2x) + 10]
then find the value of f(0) + f'(0) + f''(0)

Grade:11

1 Answers

Vijay Mukati
askIITians Faculty 2590 Points
6 years ago
Hint.: Try to find out first and second derivate of f(x) seperatly and then to find the f(0) and other put x = 0. Thanks.

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