Mathematics
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Language:English
==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
6×(π÷2-2×1.05×tan20)
6×(π÷2+2×1.05×tan20)
60×cos20÷cos13.35
2×tan((20)×(-0.64)÷45)+0.0149
2×tan(20)×(-0.64)÷45+0.0149
6÷(-3)加2^2×(1-√4)
2tan(20×(-0.64)÷45)
cos60
cos30
1/3.6×0.03×30+〖30〗^2/(25.92×0.84×0.8×9.8)=
1/3.6×0.03×30+〖30〗^2/(25.92×0.71×0.8×9.8)=
arccos0.6611
arccos0.8781
arccos0.8187
21.5-12.9=
(14.9*220+10.54*200)/420=
(1000*16.5+300*11.5+67*6)/1367=
5*10+15*18+13+10+3*14+38*11.5+3*24+19*6+16+3*10=
5/102+15/133.58+13/44.7+3/45.1+14/500+.024=
1-exp(0.509696532304)
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