Mathematics
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==equ==
Unary equation
Multivariate equation
==cal==
Solution inequality
Mathematical calculation
Fractional calculation
Mathematical statistics
Resolving prime factor
Fraction and Decimal Interactions
Lenders ToolBox
==LiAl==
Determinant
Matrix multiplication
Inverse matrix
==der==
Derivative function
==img==
Function image
==que==
Q&A
current location:Mathematical operation > History of Mathematical Computation
21×1.78/2×8.92+(35.68+82.69)×6.33/2×6.33/3×(2×35.68+82.69)/(35.68+82.69)-(14.28+99.74)×2.83/2×2.83/3×(2×14.28+99.74)/(14.28+99.74)+501.92×6.33
21×1.78/2×8.92+(35.68+82.69)×6.33/2×6.33/3×(2×35.68+82.69)/(35.68+82.69)-(14.28+99.74)×2.83/2×2.83/3×(2×14.28+99.74)/(14.28+99.74)-501.92×6.33
21×1.78/2×9.97+(35.68+135.42)×7.375/2×7.375/3×(2×35.68+135.42)/(35.68+135.42)-(14.28+77.3)×3.875/2×3.875/3×(2×14.28+77.3)/(14.28+77.3) -501.92×7.725
21×1.78/2×9.97+(35.68+135.42)×7.375/2×7.375/3×(2×35.68+135.42)/(35.68+135.42)-(14.28+77.3)×3.875/2×3.875/3×(2×14.28+77.3)/(14.28+77.3)
2096.53-308.75-1285.86=
(14.28+207.42)×11.6/2
(2096.53×5.775-1285.86×5.358)/(17.1-0.2)
(1285.86×(15.1/3×(2×14.28+207.42)/(14.28+207.42)))/1285.86
(18.69×(1.78/3+15.1)+2077.84×(15.1/3×(2×35.68+239.53)/(35.68+239.53)))/(2599.63-503.1)
(18.69×(1.78/3+15.1)+2077.84×(15.1/3×(2×35.68+239.53)/(35.68+239.53))/(2599.63-503.1)
(18.69×(1.78/3+15.1)+2077.84×(15.1/3×(2×35.68+239.53)/(35.68+239.53))-503.1×(3.9/3×(115.01+2×142.99)/(115.01+142.99)))/2599.63
40.5*sin30
40.5*sin27.5
40.5*cos27.5
40.5*tan27.5
40.5*tan27
40.5*tan28
41*tan28
41*tan30
40*tan30
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