Fractional and Negative Indices
40
Easy
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Given that u=5xu = 5^xu=5x and v=5yv = 5^yv=5y, express in terms of u u\,u and/or vvv,

i.

5x+y5^{x+y}5x+y

[1]
ii.

52x5^{2x}52x

[1]
iii.

5y−15^{y-1}5y−1

[1]

Fractional and Negative Indices Questions

Practise OCR GCSE Maths Fractional and Negative Indices with exam-style questions for Foundation and Higher tier. 100 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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Fractional and Negative Indices Questions

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