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MathTo demonstrate that the set `Z` (the integers) is a group with respect to the binary operation (`*`) where `a*b = a + b-10` we need to show that the four axioms hold, ie i) closure, ii)...
Mathi) Arccos is the inverse cosine function. Since the range (the range of y values) of the cosine function is [-1,1] then the domain of the inverse cosine function, arccos, is the same. With an...
MathSolve by a numerical method, eg the Newton-Raphson iterative method. This improves an estimate `x_n` to `x_(n+1)` by the formula `x_(n+1) = x_n - f(x_n)/(f'(x_n))` where `f(x)` is the function...