Find the general form of the antiderivative for functions: f (x) = cos ^ 2x-sin ^ 2x.
July 22, 2021 | education
| Find the general form of the antiderivative for functions: f (x) = cos ^ 2x-sin ^ 2x. Prove that the function F is an antiderivative for the function f on the set R: a) F (x) = x ^ 4-3, f (x) = 4x ^ 3;
In order to find the general form of antiderivatives for a function, we transform its equation – we use the formula for finding the cosine of a double angle:
cos 2x = cos ^ 2 x – sin ^ 2 x, which means:
Y = cos 2x;
G = sin 2x * 1/2 + C – general view of antiderivatives for the function Y (C – any number).
2) We have the function F (x) = x ^ 4 – 3;
Find the derivative:
F ‘(x) = 4 * x ^ 3. As you can see, the derivative F ‘(x) is equal to f (x), which means that F (x) is the derivative for f (x).
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