
MathTo demonstrate that the set `Z` (the integers) is a group with respect to the binary operation (`*`) where `a*b = a + b10` 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 NewtonRaphson 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...