Mister Exam
其他计算器
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如何使用？
- 方程:
-
方程 2*sin(x)=1
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方程 x/2+x=12
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方程 3x^2-12=0
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方程 6x+2=-1
- 在方程中将 {x} 用 y 表示:
- 18*x+19*y=7
- -4*x+4*y=-9
- -20*x+14*y=16
- -4*x+14*y=-2
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等价表达式
- 2xsinx+x^2cosx
- 2x 正弦 x 加 x 平方 余弦 x
- 2xsinx+x2cosx
- 2xsinx+x²cosx
- 2xsinx+x 的幂 2cosx
-
相似表达式
- 2xsinx-x^2cosx
2xsinx+x^2cosx 方程
有了正确解答，你会成为小组里最受欢迎的人❤️😊
解答
You have entered
[src]
2 2*x*sin(x) + x *cos(x) = 0
$$x^{2} \cos{\left(x \right)} + 2 x \sin{\left(x \right)} = 0$$
Numerical answer
[src]
x1 = -5.08698509410227
x2 = -39.3207281322521
x3 = -11.17270586833
x4 = -98.9803718651523
x5 = 17.3932439645948
x6 = 5.08698509410227
x7 = -8.09616360322292
x8 = -92.6985552433969
x9 = 67.573830670859
x10 = -26.7780870755585
x11 = 95.839441141233
x12 = -67.573830670859
x13 = 86.4169374541167
x14 = 0.0
x15 = -58.153842078645
x16 = -42.458570771699
x17 = 20.5175229099417
x18 = -55.0142096788381
x19 = -80.1355651940744
x20 = -73.8545010149048
x21 = 51.8748140534268
x22 = -33.0471686947054
x23 = -51.8748140534268
x24 = 58.153842078645
x25 = -36.1835330907526
x26 = 29.9118938695518
x27 = -89.5577188827244
x28 = -61.2936749662429
x29 = 33.0471686947054
x30 = -70.7141100665485
x31 = -2.2889297281034
x32 = 80.1355651940744
x33 = -20.5175229099417
x34 = -86.4169374541167
x35 = 61.2936749662429
x36 = 98.9803718651523
x37 = 45.5969279840735
x38 = 8.09616360322292
x39 = 36.1835330907526
x40 = -17.3932439645948
x41 = -45.5969279840735
x42 = -29.9118938695518
x43 = 83.2762171649775
x44 = 64.4336791037316
x45 = -76.9949898891676
x46 = -120.967848975693
x47 = -23.6463238196036
x48 = 92.6985552433969
x49 = 76.9949898891676
x50 = -95.839441141233
x51 = -83.2762171649775
x52 = 2.2889297281034
x53 = -64.4336791037316
x54 = 11.17270586833
x55 = 26.7780870755585
x56 = 42.458570771699
x57 = -14.2763529183365
x58 = 3.95930141892882e-7
x59 = 73.8545010149048
x60 = -48.7357007949054
x61 = 55.0142096788381
x62 = 48.7357007949054
x63 = 23.6463238196036
x64 = 39.3207281322521
x65 = 70.7141100665485
x66 = 14.2763529183365
x67 = 89.5577188827244
x67 = 89.5577188827244