Given that 7×7=7k7 \times \sqrt{7} = 7^k7×7=7k, find the value of kkk.
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.