You are Here: Home >< Maths

# C2 Soloman Paper D question watch

1. Hey.

Is this a suitible method for 7(i)?
https://b940eb267c31463d4d23ccfd3105...20C2%20OCR.pdf
Thanks.
2. No, that is wrong, for your third step it should be and not due to the laws of exponentials . Then go on to simplify to required result.
3. log2^(y-1)=1 + log2^x
log2^(y-1) - log2^x = 1

log2 ^ y-1/x = 1

y-1/x = 2^1

y-1/x = 2

Simplify and you get the answer

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: April 10, 2016
Today on TSR

### The most controversial member on TSR?

Who do you think it is...

### Is confrontation required?

Discussions on TSR

• Latest
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

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE