Question: If i = 4 sin ( t + 5 0 ) and v = 7 sin ( t - 3 0 ) , which one

If i =4 sin(t +50) and v =7 sin(t -30), which one of these statements is true?
Question 10 options:
i lags v by 80
i leads v by 80
i leads v by 20
i lags v by 20

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