engineering recuitment BHEL Engineer Trainee Mock Test 2025 Signals and Systems Introduction To Signals and Systems Standard Signals
सतत समय क्षेत्र के लिए, सही गुण का चयन कीजिए।
1
u(t) = u(at); a < 0
2
u(t) = u(at); a > 0
3
u(t) = u(at + b); a > 0
4
u(t) = u(at + b); a < 0