(1) f(2) = 2(2) + 1 = 5 (2) f(4) = 3(4) - 2 = 10 (3) 根据题意,当x≤3时,函数f(x) = 2x+1;当x>3时,函数f(x) = 3x-2。因此,f(x)的定义域为(-∞, +∞)。 (4) 根据题意,函数f(x)的值域为(-∞, +∞)。反馈...
不等式组得解集为1≤ x 3 (7)\((array)l3x+3 5(x-1)① 43x-6≥ (6-5x)3②(array). 解不等式①得3x+3 5x-5 x 4 解不等式②得4x-18≥ 6-5x x≥ 83 不等式组得解集为83≤ x 4 (8)\((array)l(x-3)2+3≥ x+1① 1-3(x-1) 8-x②(array). 解不等式①...
德国GRW流量计轴承 LE683/604531 德国GRW涡喷发动机轴承 SV683/8-2ZP5C15/20GPRTNH 德国GRW仪器仪表轴承 SSLAGEREINHEIT/604616 德国GRW宇航轴承 HYSV3/32/604635-Z1/HYSV3/32/ 德国GRW飞机轴承 SS694/133-2TSGPRJ 德国GRW轴承 HYSS4763B/604641-ZABEC7PK25 德国GRW流量计轴承 SS687/604709-2ZC2/9GPRJ 德...
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Step by step video, text & image solution for f(x)={{:((1)/(5)(2x^(2)+3)",","for",-inftyltxle1),(6-5x",","for",1ltxlt3),(x-2",","for",3lexltoo):}," then f is - " by Maths experts to help you in doubts & scoring excellent marks in Class 12 exams.Updated ...
(1)方程 2x+2=0的根; (2)不等式 2x+2>0的解集; (3) -3\leqy\leq3时,x的取值范围. 相关知识点: 试题来源: 解析 函数的图象如图所示, , (1)由图象可知,函数与轴交于点, 方程的根是; (2)由图象可知,函数在轴上面的部分所对应的的值为, 不等式的解集为; (3)由图象可知,当时,的...
## 答案解析: 1. **(1) (2x-1)/(x17)-3**:移项并通分,得到 (5x+22)/(x^2+7)0,解得 x-7 或 x-(22)/5。 2. **(2) (3x)/(x^2)1**:移项并通分,得到 (3x-x^2-2)/(x^2+2)0,解得 1≤x≤2。 3. **(3) x^2-6x+9≤0**:配方得到 (x-3)^2≤0,解得 ...
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The functionf(x)=⎧⎪ ⎪⎨⎪ ⎪⎩x2/a0≤x<1a1≤x<√2(2b2−4b)/x2√2≤x<∞is continuous for0≤x<∞, then the most suitable values of a and b are View Solution View Solution Free Ncert Solutions English Medium
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