Find the periodicity of the following signal. x(t)=cos((2π/7)t)sin((3π/5)t)(a) 30(b) 7(c) 35(d) 5/3I got this question during an online interview.My doubt is from Classification of Signals in chapter Signals and Spectra of Digital Communications

Find the periodicity of the following signal. x(t)=cos((2π/7)t)sin((3

1.	Find the periodicity of the following signal. x(t)=cos((2π/7)t)sin((3π/5)t)(a) 30(b) 7(c) 35(d) 5/3I got this question during an online interview.My doubt is from Classification of Signals in chapter Signals and Spectra of Digital Communications
Answer» The correct OPTION is (C) 35 The BEST I can explain: T1=2π/2π/7 = 7, T2=2π/3π/5=5/3, T1/T2=5/21, T=21T1 or 5T2, T=35.

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Find the periodicity of the following signal. x(t)=cos((2π/7)t)sin((3π/5)t)(a) 30(b) 7(c) 35(d) 5/3I got this question during an online interview.My doubt is from Classification of Signals in chapter Signals and Spectra of Digital Communications

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