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人気のある代数 >

solvefor x,fx=sqrt(x^2-64)

解

解く

x, f x = x^{2} - 64

解

x = - \frac{64}{f ^{2} - 1} {0 \leq f < 1}, x = - - \frac{64}{f ^{2} - 1} {- 1 < f \leq 0}

解答ステップ

f x = x^{2} - 64

両辺を2乗する:

x^{2} f^{2} = x^{2} - 64

x^{2} f^{2} = x^{2} - 64

解く

x^{2} f^{2} = x^{2} - 64 : x = - \frac{64}{f ^{2} - 1}, x = - - \frac{64}{f ^{2} - 1}

x = - \frac{64}{f ^{2} - 1}, x = - - \frac{64}{f ^{2} - 1}

解を検算する:

x = - \frac{64}{f ^{2} - 1} {0 \leq f < 1}, x = - - \frac{64}{f ^{2} - 1} {- 1 < f \leq 0}

解答は

x = - \frac{64}{f ^{2} - 1} {0 \leq f < 1}, x = - - \frac{64}{f ^{2} - 1} {- 1 < f \leq 0}

グラフ

人気の例

2 - 20 x = 0

solvefor x,fx=x^2sqrt(x)

so l v e f or x, f x = x^{2} x

x = - 4 x + 5

x^{4} = 2

24.1=14(t+5)^{1/3}

24.1 = 14 (t + 5)^{\frac{1}{3}}