Thread: Help working out a Taylor series of cos3x

Originally Posted by Prove It

The point of a Taylor series is to use a particular combination of addition, subtraction, multiplication, division and exponentiation to approximate numbers you normally would not be able to evaluate.

Somehow, I don't think that's really the point of a Taylor series.

Well then what do you think the point of a Taylor series is?

Originally Posted by Prove It

BTW, tell whoever has set this question that this is a stupid question.

Ok I'll tell them