Wave A starts its positive half cycle at ω = 30° and wave B starts its positive half cycle at ω = 75° then wave B is leading wave A by 45°.

Wave A starts its positive half cycle at ω = 30° and wave B starts i

1.	Wave A starts its positive half cycle at ω = 30° and wave B starts its positive half cycle at ω = 75° then wave B is leading wave A by 45°.
Answer» B is lagging A by 45°.