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)
Question: Find the 4th derivative of f(x) = 3x^4 - 8x^2 + 5.
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What is the value of y if 3y + 10 = 31?
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What is the integral of cos(x)dx using the standard formula?