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# C1 Indices Help Watch

1. Please may I have some help on the following two questions; Question 11 and question 7 on the second picture. Thanks
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2. (Original post by candyhearts)
Please may I have some help on the following two questions; Question 11 and question 7 on the second picture. Thanks
For 11 take it a stage at a time - for example, can you see how to simplify the first factor in the numerator?
3. (Original post by candyhearts)
Please may I have some help on the following two questions; Question 11 and question 7 on the second picture. Thanks
And for 7 replace m and n inside the brackets with their equivalents in terms of a, then combine indices and simplify. Equate both sides as powers of a and you should be done!
4. 7)

Substitute in m and n.

11) ?
5. (Original post by davros)
And for 7 replace m and n inside the brackets with their equivalents in terms of a, then combine indices and simplify. Equate both sides as powers of a and you should be done!
Thankyou, I managed to do number 7. Having a little difficulty with 11, this is what I've done so far
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6. (Original post by GeneralOJB)
7)

Substitute in m and n.

11) ?
Thankyou, for number 11, Im getting Please could you perhaps point out where I've gone wrong
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7. (Original post by GeneralOJB)
7)
...
Please don't post full solutions - it's against the forum guidelines, and it doesn't give the OP chance to have a go with hints provided.
8. (Original post by candyhearts)
Thankyou, for number 11, Im getting Please could you perhaps point out where I've gone wrong
You've got your denominator wrong - you've somehow got turning into in the factor you divide by, so you've lost an that should have been there and gained another term in the exponent that should be there!!
9. (Original post by davros)
You've got your denominator wrong - you've somehow got turning into in the factor you divide by, so you've lost an that should have been there and gained another term in the exponent that should be there!!
How did I not spot that, thank you very much (Unfortunatley I cant seem to give you rep), but I appreciate you saving me from spending ages on those questions.
10. (Original post by candyhearts)
How did I not spot that, thank you very much (Unfortunatley I cant seem to give you rep), but I appreciate you saving me from spending ages on those questions.
No problem - for what it's worth that Q11 is one of the nastier indices questions I've seen!
11. (Original post by davros)
No problem - for what it's worth that Q11 is one of the nastier indices questions I've seen!
That makes me feel a little relieved
12. (Original post by candyhearts)
Please may I have some help on the following two questions; Question 11 and question 7 on the second picture. Thanks
nasty questions. where do you get those? i would like to crack on with them.
13. (Original post by CoolRunner)
nasty questions. where do you get those? i would like to crack on with them.
This book
http://www.amazon.co.uk/gp/aw/d/1902214455
14. Thanks!

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