Skip to content
START WITH A QUESTION

What would you like to understand?

Find an answer. See the moment it becomes clear. Follow the idea further.

← Concept directory

Answers for “在这个片段中,如何从余弦幂级数计算 $\int_0^{\pi/2} \cos x\,dx$?”

1 keyword matches

Understanding your question. You can explore the search results below now.

Meet the concept

↗

The final value of the integral is 11. This is obtained by evaluating the recognized sine series at the endpoints of the interval: sin⁡(π/2)−sin⁡(0)=1−0=1\sin(\pi/2) - \sin(0) = 1 - 0 = 1.

Conditions: The integration interval is [0,π/2][0,\pi/2].; The integrated series has been correctly identified as the Maclaurin series for sin⁡x\sin x.; The Fundamental Theorem of Calculus is applied to evaluate the definite integral.