IB MAI HL Number and Algebra Topic 1.4 Complex Numbers (id: 3d22c86ba)

本题目来源于试卷: IB MAI HL Number and Algebra Topic 1.4 Complex Numbers，类别为 IB数学

[填空题]
Two voltage sources are connected to a circuit. At time t milliseconds15tn 7tjr+ qxc 7./ mbahp(jou (ms), the voltage from the first source is a7b/.o pjmu (h$V_1$(t)=12cos(20t) and the voltage from the second source is $V_2$(t)=18cos(20t+5), shere both $V_1$(t) and $V_2$(t) are
easured in volts.
1.Write, in the form V(t)=Acos(ωt+φ), an expression for the total voltage in the circuit at time t ms.
2.Hence write down the highest voltage in the circuit.
Hence the highest voltage in the circuit is    volts
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参考答案: 24.3±1


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