展开 sqrt(3)(sqrt(7)+sqrt(11))

解答

展开

3 (7 + 11)

21 + 33

十进制

10.32713 \dots

求解步骤

3 (7 + 11)

使用分配律:

a (b + c) = ab + a c

3 (7 + 11) = 37 + 311

= 37 + 311

37 = 21

311 = 33

= 21 + 33

d e g 2 r a d [(x + 3) \cdot ln (2 - x^{2})]^{^{'}}

e x p an d (e^{x} - e)^{2}

s im pl i f y (x + 3 y - \frac{5}{6}) (x + 3 y + \frac{5}{6})

e x p an d \frac{K ( s + a )}{s + 1} \cdot \frac{1}{s ( s + 2 ) ( s + 3 )}

e x p an d \frac{6 ( 2 N ^{2} + 3 N + 1 )}{N ^{2}}