1. ## Stating the amplitude

I'm teaching myself Trigonometry & Precalculus, so please bear with me if possible. I have a book called "Mathematics for the international student".

1.$\displaystyle y=3six(x)$
2.$\displaystyle y=\sqrt{7}six(x)$
3.$\displaystyle -2six(x)$

If the amplitude of the normal sin function is 1.
Then I'm assuming the amplitude changes when the function is the product of something.

1. 3
2. $\displaystyle \sqrt{7}$
3. -2

2. ## Re: Stating the amplitude

Correct! But we write $\displaystyle \sin(x)$ in stead of $\displaystyle six(x)$ to indicate the sine function.

3. ## Re: Stating the amplitude

Originally Posted by Siron
Correct! But we write $\displaystyle \sin(x)$ in stead of $\displaystyle six(x)$ to indicate the sine function.
Sorry it was a typo.