1.

The expression of true power (Ptrue) is?

A. P<sub>a</sub>sinθ
B. P<sub>a</sub>cosθ
C. P<sub>a</sub>tanθ
D. P<sub>a</sub>secθ
Answer» C. P<sub>a</sub>tan‚âà√≠‚Äö√†√®


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