engineering recuitment BEL Probationary Engineers Mock Test 2025 Signals and Systems Introduction To Signals and Systems Classification of Signals
सिग्नल x(t) = cos(2πt) cos(4πt) – sin(2πt) sin(4πt) की अवधि _____ है।
1
1/3 sec
2
1/6 sec
3
1/8 sec
4
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