One mark exercise problems I — task. Mathematics State Board, Class 7.

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1. \(a \times a \times a \times a \times a\) is equal to

\(5a\)
\(5^a\)
\(a + 5\)
\(a^5\)

2. The exponential form of \(72\) is

\(2^3 \times 3^2\)
\(2^7\)
\(2^2 \times 3^3\)
\(7^2\)

3. The value of \(x\) in the equation \(a^{13} = x^3 \times a^{10}\) is .

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