3次根号下2加根5与3次根号下2减根5 的和 怎么计算?
网友回答
2^(1/3) + 5^(1/2) + 2^(1/3) - 5^(1/2)
= 2^(1/3) + 5^(1/2) + 2^(1/3) - 5^(1/2)
= 2 × 2^(1/3)
= 2 × 1.26
= 2.52======以下答案可供参考======
供参考答案1:
2^(1/3) + 5^(1/2) + 2^(1/3) - 5^(1/2)
= 2^(1/3) + 5^(1/2) + 2^(1/3) - 5^(1/2)
= 2 × 2^(1/3)
= 2 × 1.26
= 2.52供参考答案2:
我农民了，下面的写的看不懂啊。
哦，题目没有说明白，我看错了，理解成3次根号下（2加根5）了、