展开 sqrt(3)(sqrt(5)+sqrt(2))

解答

展开

3 (5 + 2)

15 + 6

十进制

6.32247 \dots

求解步骤

3 (5 + 2)

使用分配律:

a (b + c) = ab + a c

3 (5 + 2) = 35 + 32

= 35 + 32

35 = 15

32 = 6

= 15 + 6

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