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Core Pure: series and proof

Quick questions on Summation of series: the standard sums of r, r squared and r cubed - OCR A-Level Further Maths A

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is not factorising?
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Mark schemes reward the fully factorised form; leaving the answer as a sum of separate terms can lose the final accuracy mark.
What is q1?
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Find ∑r=1n(r+2)\displaystyle\sum_{r=1}^{n} (r + 2). [2 marks]
What is q2?
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State the value of ∑r=110r3\displaystyle\sum_{r=1}^{10} r^3. [2 marks]

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