X Multiply by taking
Multiply.
20 X 600
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5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

Having a hard time understanding this question (see attachment).

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)