Question

please help me with the question​

Answer 1

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Answer 2

Answer: (a) 30 degree.

Explanation: The Resultant wave = E1+ E2

E1 = Eo Sint

E2 = Eo Sin(t+60ᶞ)

E = E1 +E2

  = Eo (sint +( sint + 60ᶞ)

  by mathematically we get

E= 2Eocos(wt) sin(wt+30).