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- Complex Numbers

(2+2i)*(3+3i) - Integral Calculus

int(x^2) - Differential Calculus

diff(x^2) - Equations

x^2+2x-1=9 - Graphs

plot(sin(x),x=0..360) - Linear Algebra

(1, 2, 3)#(4, 5, 6)

- Number theory

sum(x,x=1..10) - Percent

100+5% - Standard Functions

sqrt(9) - Statistics

ncr(49, 6) - Trigonometry

sin(90) - Unit Conversion

200m in cm

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- Hard Counting Problem (IMO)
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- physics
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- Let ABC be a triangle with\angle BAC = 90. A circle is tangent to the sides AB and AC at X and Y respectively, such that..
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- algebra
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- Polynomial math problem.
- help for number theory proof that shows that 9x+5y is divisible by 19 if and only if x+9y is divisible by 19
- an answer was originally written as a photo, is there a way I can still read it?
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- line (coordinates)
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