`@` `\text {Ans}`
`\downarrow`
`1,`
`a)`
`10 = 10^1`
`100 = 10^2`
`1000 = 10^3`
`10000 = 10^4`
`100...0 (\text {n số 0}) = 10^n`
`b)`
`5 = 5^1`
`25 = 5^2`
`625 = 5^4`
`3125 = 5^5`
`c)`
`8^2 * 8^4 * 8^5`
`= 8`\(2+4+5\)
`= 8`\(^{11}\)
`d)`
`27^3 * 9^4 * 243`
`= (3^3)^3 * (3^2)^4 * 3^5`
`= 3^9 * 3^8 * 3^5`
`=`\(3^{9+8+5}\)`=`\(3^{22}\)
`e)`
`5*125`
`= 5*5^3`
`= 5^4`
`f)`
`10*100*1000`
`=10*10^2 * 10^3`
`= 10^6`
`g)`
`4^10 \div 4^6 \div 4^4`
`= 4`\(^{10-6-4}=4^0=1\)

4 và 5