You are Here: Home >< Maths

# Index Notation Problem watch

1. I think I'm missing something simple here guys. If you help me with the first question i should be able to work out the rest.

Given that, in standard form, and find approximations, also in standard form, for the following.

a)
b)
c)
d)

As I said before, a little help with what to do for the first one would be appreciated. For a) I think im going to have to do something to to get the answer, but im not sure what.
2. Take the reciprocal. So 1/4 x 10^180 which is equal to 2.5 x 10^179.
3. Thanks, that was annoyingly simple .
4. so surely
5. Ok I have worked out a), b), and c) but i cant do d). Any help?
6. (Original post by PhyMath)
Ok I have worked out a), b), and c) but i cant do d). Any help?

so

Does that help?
7. Well, the ^(5/2) means square root it and then to the power of 5. Rt (3^-376) = 2 x 10^-90 (from the definition), and then to the power of 5, so 32 x 10^-450 or 3.2 x 10^-449.
8. (Original post by quakeeem)
Well, the ^(5/2) means squa...
I was trying to get him to work it out himself
9. There aren't two terms in the bracket, is one term.

Nvm, i get it now. Thanks guys.

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: September 21, 2008
Today on TSR

### Cambridge interviews

Find out who is getting invitations

### University open days

• University of Roehampton
Sat, 17 Nov '18
• Edge Hill University
Faculty of Health and Social Care Undergraduate
Sat, 17 Nov '18
• Bournemouth University
Sat, 17 Nov '18
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams