exam Maths Puzzle Numerical Ability

given f(x) = square root of x-4 and g(x) = square root of x-2

find

g/f (x)

domain of g/f x

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exam Other Question

The recirocal of two more than a number is three fourths of the reciprocal of the number itself. What is the number? When using the quadratic formula to solve a quadratic equation ax2+bx+c=0 the discriminant is b2-4ac. This discriminant can be positive, zero, or negative. (when the discriminant