


2.根式计算.-|||-(1) sqrt (dfrac {4)(25)} ;-|||-(2) sqrt ({11)^2+((4sqrt {3))}^2}-|||
-8 伏-|||-C.8伏-|||-D. -14 伏
10.计算下列各根式的近似值:-|||-(1) sqrt [3](996);-|||-(2) sqrt [6](65.).
计算下列各根式的近似值:(1)sqrt [3](996)(2)sqrt [3](996)计算下列各根式的近似值:(1)(2)
将根式化为指数形式dfrac ({x)^2sqrt (x)}(sqrt [3]{x)}=将根式化为指数形式
sqrt (dfrac {3g)(l)}-|||-C. sqrt (dfrac {3g)(2)}-|||-D. sqrt (dfrac {8)(3)}
sqrt (2)pi :2 C. sqrt (2)pi :4 D. sqrt (2)pi :8
0.计算下列各根式的近似值:-|||-(1) sqrt [3](996);
sqrt (2)pi -|||-C. dfrac (sqrt {2pi )}(4)-|||-D. dfrac (sqrt {2pi )}(8)
将根式化为指数分数形式: dfrac (1)(sqrt {1+{x)^2}}