exam Maths Puzzle Numerical Ability

Common and Natural Logarithms

For the exponential function e^x and logarithmic function log x, graphically show the effect if x is doubled.

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exam Other Question

Determine whether the statement is a tautology, self-contradiction or neither

(p ^ ~q) -> q how do you solve a problem with an ellipse when the center shifts off of (0,0). where does the a^2 and b^2 come from on the equation: (x-h)^2 over a^2 + (y-k)^2 over b^2 [which all =1]?