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1. |
The value of the c2 in the following equation is?i = e-37.5t(c1cos1290t + c2sin1290t) + 0.7cos(500t + π/4 + 88.5⁰). |
A. | 2.3 |
B. | -2.3 |
C. | 1.3 |
D. | -1.3 |
Answer» D. -1.3 | |