Math Is Fun Forum

The fellow's post is at #38.

What is the subtle difference between, a square root and a principal square root?

Thanks.

Okay.

I will return getting to nıght time.

Yes, Bobbym.

I just want to become used to them, cos in no time I will be teaching others.

Now, I had the same answer for the second question.

I owe you some thanks. :-)

= 0.36 *10^0

Please can you provide the steps?

Thanks.

Yes. But all are in a square root.

Sorry! the denominator is 2.25 * 10^7

Forgive me.

Candidly speaking, since I started working on indices I haven't seen nor come accros a problem that could produce different bases as your own. As you made 9^(n+2) *3^(n+2) out of 27^(n+2)

Now I think the method that will be applicable to a problem is the one that must be used.

Thank very much Bobbym, God bless you.

27^n+2=27^n * 27^2

Thıs is how I mean, I will learn parenthesis in it proper way as you say.

For instance, 6^n+3=6^n * 6^3.

Because, for instance, 3^2 * 3^2=3^(2+2).

What do you say.

I suppose the base must always be the same in each case. So I percieved it to be,

27^n+2=27^n*27^2=3^3n * 3^3+2.

I had thought should be so.

Please,  I double check it I have edited.

Thanks.

Okay, Thanks bobbym.

Then I suppose, in change of subject, speed, velocity, time etc. Can't be negative in practise and therefore, if one is asked to make any of  the above  subject of a relation,  should be in the postive form instead.