Multiple Choice Questions on sin60 deg i cos60 deg when expressed in polar form is ........ for NDA Exam Preparation

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Multiple Choice Questions

sin60 deg i cos60 deg when expressed in polar form is ........

Mathematics (NDA) Complex Numbers
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(sin60° +i cos60°), when expressed in polar form is ?

cos30° +i sin30° 

Correct Answer

cos60° + i sin60° 

Incorrect Answer

1 

Incorrect Answer

None of these 

Incorrect Answer
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Explanation:

 ( sin60° + i cos60° ) = { sin(90°-30°) + i cos(90°-30°)} 

= { cos30° + i sin30°)} 

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