【用戶】Neng Kuan Lin
【年級】小一上
【評論內容】周期T=0.01s,頻率f=100hz函式=VmSin(2πft ± θ)當t=0時-20=40sin(200π*0 ± θ)而sin(-30)=-1/2π=180度,故π/6符合
【用戶】Neng Kuan Lin
【年級】小一上
【評論內容】周期T=0.01s,頻率f=100hz函式=VmSin(2πft ± θ)當t=0時-20=40sin(200π*0 ± θ)而sin(-30)=-1/2π=180度,故π/6符合
【用戶】Neng Kuan Lin
【年級】小一上
【評論內容】周期T=0.01s,頻率f=100hz函式=VmSin(2πft ± θ)當t=0時-20=40sin(200π*0 ± θ)sin(± θ)=-1/2θ=-30π=180度,故π/6符合