Multiplication is a way of adding the same number multiple times. When you multiply 3×3, you're adding the number 3 three times:
3×3=3+3+3=9
So, 3×3=9 means that you're taking three groups of three, which equals 9 in total.
Frequently asked questions (FAQs)
What are the extrema (maximum and minimum values) of the function f(x) = 2x^3 - 6x^2 + 3x + 4 on the interval [-2, 4]?
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What is the period of the function f(x) = 2sin(3x) - cos(5x)?
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What is the area of a triangle with a base length of 10 units and a height of 8 units?