A.17.32sin(ωt+90°) B.10sin(ωt-90°) C.1

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问题 A.17.32sin(ωt+90°)B.10sin(ωt-90°)C.17.32sin(ωt-30°)D.17.32sin(ωt+150°)

选项 A.17.32sin(ωt+90°)
B.10sin(ωt-90°)
C.17.32sin(ωt-30°)
D.17.32sin(ωt+150°)

答案 A

解析
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