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Explicit = obvious meaning. Implicit = unobvious meaning. So if something was explicit in a text, it means that the information is clearly stated for you. E.g. Josh w...
We have values for the mass and the acceleration of the van, so we can work out the resultant force acting on it using Newton’s second law: Fr = ma Fr = 2150 x 3 = 6450N Driving fo...
To put this equation into partial fractions we need to consider it in the form: (5x + 4)/(x +2)(x - 1) = A/(x + 2) + B/(x - 1) where A and B are numbers we are trying to find. To do this we need to multip...
Here the key is to remember to differentiate with both x and y with respect to x, where the differential of y is dy/dx. Consider the first term, 3x2 : This differentiates to 6x. This is done by...
Reduction: loss of oxygen (or gain of electrons)
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