Is sin4xcos2x odd? (1 Viewer)

[MC Squidge]

cant prove it

 

[Drongoski]

cant prove it

f(-x) = sin(-4x)cos(-2x) = -sin(4x) cos(2x) = - f(x) ==> f(x) is odd.

 

[MC Squidge]

ahhh thanks

 

[Iruka]

When you multiply an even function by an odd function, you get an odd function.

You may wish to pause and consider the arithmetic of positive and negative numbers to realize why this is so.