[ sqrt (3),2] -|||-C. [ -2,-sqrt (3)] D. [ -2,-sqrt (3)] cup [ sqrt (3),2]
sqrt (2)pi :2 C. sqrt (2)pi :4 D. sqrt (2)pi :8
-3sqrt (2) C. -2sqrt (3) D. -1
sqrt (2)pi -|||-C. dfrac (sqrt {2pi )}(4)-|||-D. dfrac (sqrt {2pi )}(8)
C. D. sqrt (2gH) E.2AgH-|||-sqrt (2gH) sqrt (2{A)_(g)H}一盛水大容器,水面离底距离为H,容器的底侧面有一面
+x+sqrt (2)=0 C. -x-sqrt (2)=0 D.
[ -sqrt (2),sqrt (2)] D. [ -sqrt (2),0]
sqrt (2) C. sqrt (3) D.2
A.sqrt(1+x) B.(sqrt(1+x))/(2) C.(sqrt(1+x))/(sqrt(x)) D.(sqrt(1+x))/(2sqrt(x)
sqrt (2) C. dfrac (sqrt {2)}(2) D.1