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受欢迎的代数 >

r^{0.2}r=17.22

解答

r^{0.2} r = 17.22

解答

r = 6 \frac{4.73168 E 14}{312500000}, r = - 6 \frac{4.73168 E 14}{312500000}

+1

十进制

r = 10.71587 \dots, r = - 10.71587 \dots

求解步骤

r^{0.2} r = 17.22

对方程式两边

5

次方:

r^{6} = 1514138.96435 \dots

r^{6} = 1514138.96435 \dots

解

r^{6} = 1514138.96435 \dots : r = 6 \frac{4.73168 E 14}{312500000}, r = - 6 \frac{4.73168 E 14}{312500000}

r = 6 \frac{4.73168 E 14}{312500000}, r = - 6 \frac{4.73168 E 14}{312500000}

验证解:

r = 6 \frac{4.73168 E 14}{312500000}

真

, r = - 6 \frac{4.73168 E 14}{312500000}

真

解为

r = 6 \frac{4.73168 E 14}{312500000}, r = - 6 \frac{4.73168 E 14}{312500000}

作图

流行的例子

0.4x^{0.5}+5=38

0.4 x^{0.5} + 5 = 38

x^{- \frac{1}{2}} = 7

\sqrt[3]{2x+11}=1

3 2 x + 11 = 1

sqrt(x)=7sqrt(2)

x = 72

1.5=2.14(x-0.75)^{3/2}

1.5 = 2.14 (x - 0.75)^{\frac{3}{2}}