二次函数 (12 16:44:23) 若函数Y=1/2( X2-100X+ |X2-100X-196| ),则当自变量X取1,2,3,.,100这100个自然数时,函数值的和是( )A.540 B.390
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二次函数(1216:44:23) 若函数Y=1/2(X2-100X+|X2-100X-196|),则当自变量X取1,2,3,.,100这100个自然数时,函数值的和是( )A.54
二次函数 (12 16:44:23) 若函数Y=1/2( X2-100X+ |X2-100X-196| ),则当自变量X取1,2,3,.,100这100个自然数时,函数值的和是( )A.540 B.390
二次函数 (12 16:44:23)
若函数Y=1/2( X2-100X+ |X2-100X-196| ),则当自变量X取1,2,3,.,100这100个自然数时,函数值的和是( )
A.540 B.390 C.194 D.94
二次函数 (12 16:44:23) 若函数Y=1/2( X2-100X+ |X2-100X-196| ),则当自变量X取1,2,3,.,100这100个自然数时,函数值的和是( )A.540 B.390
X2-100X-196=(x-50)^2-2696在x的取值范围内