1. จงหาว่าเลขยกกำลังต่อไปนี้แทนจำนวนใด
1) \(\small{10^1}\)
วิธีทำ
\(\small{10^1}\)
= \(\small{10}\)
ตอบ 10
2) \(\small{7^3}\)
วิธีทำ
\(\small{7^3}\)
= \(\small{7 \times 7 \times 7}\)
= \(\small{343}\)
ตอบ 343
3) \(\small{100^2}\)
วิธีทำ
\(\small{100^2}\)
= \(\small{100 \times 100}\)
= \(\small{10,000}\)
ตอบ 10,000
4) \(\small{20^3}\)
วิธีทำ
\(\small{20^3}\)
= \(\small{20 \times 20 \times 20}\)
= \(\small{8,000}\)
ตอบ 8,000
5) \(\small{(-1)^5}\)
วิธีทำ
\(\small{(-1)^5}\)
= \(\small{(-1) \times (-1) \times (-1) \times (-1) \times (-1)}\)
= \(\small{-1}\)
ตอบ -1
6) \(\small{(-6)^4}\)
วิธีทำ
\(\small{(-6)^4}\)
= \(\small{(-6) \times (-6) \times (-6) \times (-6)}\)
= \(\small{1,296}\)
ตอบ 1,296
7) \(\small{(-9)^3}\)
วิธีทำ
\(\small{(-9)^3}\)
= \(\small{(-9) \times (-9) \times (-9)}\)
= \(\small{-729}\)
ตอบ -729
8) \(\small{(-30)^2}\)
วิธีทำ
\(\small{(-30)^2}\)
= \(\small{(-30) \times (-30)}\)
= \(\small{900}\)
ตอบ 900
9) \(\small{(0.01)^3}\)
วิธีทำ
\(\small{(0.01)^3}\)
= \(\small{0.01 \times 0.01 \times 0.01}\)
= \(\small{0.000001}\)
ตอบ 0.000001
10) \(\small{(0.6)^4}\)
วิธีทำ
\(\small{(0.6)^4}\)
= \(\small{0.6 \times 0.6 \times 0.6 \times 0.6}\)
= \(\small{0.1296}\)
ตอบ 0.1296
11) \(\small{(1.03)^2}\)
วิธีทำ
\(\small{(1.03)^2}\)
= \(\small{1.03 \times 1.03}\)
= \(\small{1.0609}\)
ตอบ 1.0609
12) \((\frac{1}{2})^5\)
วิธีทำ
\((\frac{1}{2})^5\)
= \((\frac{1}{2}) \times (\frac{1}{2}) \times (\frac{1}{2}) \times (\frac{1}{2}) \times (\frac{1}{2})\)
= \(\frac{1}{32}\)
ตอบ \(\frac{1}{32}\)
13) \((\frac{2}{5})^4\)
วิธีทำ
\((\frac{2}{5})^4\)
= \((\frac{2}{5}) \times (\frac{2}{5}) \times (\frac{2}{5}) \times (\frac{2}{5})\)
= \(\frac{16}{625}\)
ตอบ \(\frac{16}{625}\)
14) \((\frac{5}{4})^3\)
วิธีทำ
\((\frac{5}{4})^3\)
= \((\frac{5}{4}) \times (\frac{5}{4}) \times (\frac{5}{4})\)
= \(\frac{125}{64}\)
ตอบ \(\frac{125}{64}\)