Is sin^2x and (sinx)^2 the same?

1. Nov 3, 2005

gr3g1

In my calculus class, my teacher is using sin^2x

I never saw anything like that.. Is it the same as (sinx)^2?

Thanks

2. Nov 3, 2005

Pyrrhus

If you mean

$$\sin^{2} x = (\sin x)^{2}$$

yes it's the same!

3. Nov 3, 2005

gr3g1

Ok, thanks a lot!

So, sin^2(x) = (sinx)^2 = sinx*sinx?

4. Nov 3, 2005

masudr

Yes!

I have to extend the message.

5. Nov 3, 2005

Jameson

And in case you wonder why he would use that notation, tell me what this means:

$$\sin x^2$$

Some people never really appreciate the usefullness of parantheses.

6. Nov 3, 2005

gr3g1

The angle is squared

7. Nov 3, 2005

bomba923

True, $$\sin x ^ 2 = \sin (x^2)$$
and
$$\sin ^2 x = \left( {\sin x} \right)^2$$