A teenage maths whizz has left teachers and family in awe after smashing his GCSE maths exam with just three weeks of intensive revision - and at the age of 13. Josh Cole, who is autistic and a ...
This version is used to calculate lengths. Calculate the length BC. Give the answer to three significant figures. Use the form \(a^2 = b^2 + c^2 - 2bc \cos{A}\) to calculate the length. \(\text{BC}^2 ...
It is possible to look at the difference between two numbers and work out the percentage increase or the percentage decrease. This is known as percentage change. Often goods are bought for one price ...
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