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!
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
Thankyou, for number 11, Im getting xa2−2ac+c2+a−c Please could you perhaps point out where I've gone wrong
You've got your denominator wrong - you've somehow got (xa)c turning into xa2 in the factor you divide by, so you've lost an a2 that should have been there and gained another term in the exponent that should be there!!
You've got your denominator wrong - you've somehow got (xa)c turning into xa2 in the factor you divide by, so you've lost an a2 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.
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!