(sin x + i cos x) 4, \(\rm i = \sqrt {-1}\) का वास्तविक भाग क्या है?

1
-cos 4x
2
-cos 2x
3
cos 4x
4
cos 2x

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Quick Navigation