f=sqrt(24+6\sqrt{6)}-sqrt(21-6\sqrt{6)}

解答

f = 24 + 66 - 21 - 66

f = 24 + 66 - 32 + 3

十进制

f = 3.71009 \dots

求解步骤

f = 24 + 66 - 21 - 66

化简

24 + 66 - 21 - 66 : 24 + 66 - 32 + 3

f = 24 + 66 - 32 + 3

(5 - 2) r = 8

so l v e f or x, 2 x - \frac{1}{3} - y - \frac{2}{5} = 0

so l v e f or c, lo g_{10} (d) = lo g_{10} (c) - 2

so l v e f or x, x - 2 y = 20

a + b + k (a + b) = 30