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Implicit differentiation is used when the function you need to differentiate is not in the form y = f(x). For example: y 4 + 3x 2 - 10 + 2y 2 = 4xThe first step is to differentiate each term of the equation ...

First expand the bracket (x-3) 2 separately to give x 2 - 6x +9 Next multiply by the 4 outside the brackets to give 4x 2 -24x +36 Now all the terms have been expanded you can collect the like terms in the eq...

A depression is when a wedge of warmer air forces its way into a larger body of cold air. This leads to several distinctive weather patterns. Where the warm air meets the cold air, a front is formed. Warm ai...

3x + 2y = 12 (2) multiply by 4 (To make the x coefficients equal for both equations) 12x + 8y = 48 (3) (3) - (1) 12y = 36 Divide through by 12 y = 3 Sub y = 3 into equation (2) 3x + 2(3) = 12 3x + 6 = 12 3x ...

It is worth noting that this question can be argued in various ways, and as long as you give evidence for your answer you will be given credit in an exam. Shakespeare presents Iago as a 'malcontent', a chara...