integral of 4cos(x)

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(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

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∫ 4cos(x)dx

Solution

4sin(x)+C

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∫ 4cos(x)dx

Take the constant out: ∫a·f(x)dx=a·∫f(x)dx

=4· ∫ cos(x)dx

Use the common integral: ∫ cos(x)dx=sin(x)

=4sin(x)

Add a constant to the solution

=4sin(x)+C

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integral of 4cos(x)

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