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For the pens to be the same colour either two black pens need to be selected OR two red pens. So start with the probability of two black pens BB: On the first selection the probability of taking a black p...
(Question on topic of algebra taken from June 2016 OCR Past Paper)b) This question may look different to the previous one but it's still only algebra, so it;s pretty much the same. Don't let the unknows s...
(Question on topic of algebra taken from June 2016 OCR Past Paper)a) This question LOOKS like algerba and IS 100% algebra. We have 2 unknows that we treat just like we treat any number and we have to make...
This question involves rearranging equations. In this case we need to get t on the LHS (left hand side) of this equation in order to find an expression for t. An expressi...
f(x) and g(x) are inverse functions when the following equations are true:f(g(x))=xg(f(x))=xSKAnswered by Sheela K. • Maths tutor2987 Views
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