Question

pls tell the ans fast​

Answer 1

Answer:

Hello mate ✌️..

Step-by-step explanation:

The amplitude of a periodic variable is a measure of its change in a single period. There are various definitions of amplitude, which are all functions of the magnitude of the differences between the variable's extreme values. In older texts the phase is sometimes called the amplitude

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Answer 2

Answer:

90°

Step-by-step explanation:

I hope this helps...