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Multiple Choice
Which of the following is an antiderivative of ?
A
B
C
D
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1
Understand the problem: We are tasked with finding an antiderivative of cos(x). An antiderivative is a function whose derivative gives back the original function. In this case, we need a function whose derivative is cos(x).
Recall the derivative rule for sine and cosine: The derivative of sin(x) is cos(x), and the derivative of -cos(x) is sin(x). This will help us identify the correct antiderivative.
Apply the antiderivative concept: Since the derivative of sin(x) is cos(x), the antiderivative of cos(x) is sin(x). Additionally, we add a constant of integration, C, because the derivative of any constant is zero.
Compare the options: The correct antiderivative of cos(x) is sin(x) + C. The other options, such as cos(x) + C, -cos(x) + C, and -sin(x) + C, do not satisfy the condition that their derivative equals cos(x).
Conclude: The correct answer is sin(x) + C, as it is the function whose derivative is cos(x).