If e = 10 cos (2π x 10⁸t + 20 cos 2π 10³t). The bandwidth is – McqOptions

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1.	If e = 10 cos (2π x 10⁸t + 20 cos 2π 10³t). The bandwidth is
A.	10⁸ Hz
B.	42 kHz
C.	21 kHz
D.	10⁸ ± 10³ Hz
Answer» C. 21 kHz

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