Question

4. If IĀ+BI=1Ā 1=1B | then angle between A
and B will be
(1) 90°
(2) 120°
(3) 0°
(4) 60°​

Answer 1

√ A² + A² + 2A²Cos thetha = A

2A² + 2A²Cos thetha = A²

2A²Cos thetha = - A²

Cos thetha = - 1/2

Thetha = 120 Degrees

Ans...

Answer 2

Answer:

hope it helps uh......