Evaluate |AB X CD| where A is (6, -3, 0), B is (3, -7, 1), C is (3, 7, -1) and D is (4,5,-3). Hence find the shortest distance between AB and CD The two key points two remember here…

Evaluate |AB X CD| where A is (6, -3, 0), B is (3, -7, 1), C is (3, 7, -1) and D is (4,5,-3). Hence find the shortest distance between AB and CD The two key points two remember here…

Prove that \( \sum_{r=1}^n rr! = (n+1)!-1 \) for \( n>1\) In order to prove a mathematical identity, one needs to show that the identity is valid for all the values in the desired range. Trying all the values in…

Visit our new page for the Maths A-level from 2017 solutionbanks I have uploaded solution banks for all the Edexcel Heinemann textbooks. They are in pdf format so can be opened without Internet Explorer.

Posted in A-level Maths

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