Multiples of 360° may be added to or subtracted from the argument of any sinusoidal function without changing the value of the function. To realize this, let us consider the sine wave A: lead A2 by...

Extracted text: Multiples of 360° may be added to or subtracted from the argument of any sinusoidal function without changing the value of the function. To realize this, let us consider the sine wave A: lead A2 by 150°. where: A = Api cos (10t +20°) = Api sin (10t + 90° + 20°) = Api sin (10t + 110) A2 = Ap2 sin (10t -40°) It is also correct to say that A, lags A; by 210°, since A, may be written as A = Api sin (10t -250°) (HOW!)