![The derivative of f(x) = cos(x) can be estimated using the approximation](https://www.gkseries.com/blog/wp-content/uploads/2023/09/The-derivative-of-fx-cosx-can-be-estimated-using-the-approximation.jpg)
Q. The derivative of f(x) = cos(x) can be estimated using the approximation
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot-706.png)
(A) < 0.1 % |
(B) > 0.1 % and < 1 % |
(C) > 1 % and < 5 % |
(D) > 5 % |
Ans: > 0.1 % and < 1 %
Sol:
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot-707.png)
Q. The derivative of f(x) = cos(x) can be estimated using the approximation
(A) < 0.1 % |
(B) > 0.1 % and < 1 % |
(C) > 1 % and < 5 % |
(D) > 5 % |
Ans: > 0.1 % and < 1 %
Sol:
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