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Found 8 tasks    

100

Solve the following ODE:
dx/dy = (x +y^3)/y ...MORE

Subject: Mathematics   |   Topic: Calculus  |   ID: 155528

 $ 1.0  

Fourier for x

Find the Fourier series for f(x)=x on (-pi,pi). ...MORE

Subject: Mathematics   |   Topic: Calculus  |   ID: 155646

 $ 1  

Fourier for abs(x)

The Fourier coefficients of abs(x) on (-pi,pi) ...MORE

Subject: Mathematics   |   Topic: Calculus  |   ID: 155653

 $ 1  

Fourier for x squared

Fourier coefficients of x^2 on (-pi,pi) ...MORE

Subject: Mathematics   |   Topic: Calculus  |   ID: 155654

 $ 1  

1 in sine series

Fourier coefficients for f(x)=1 on (0,c). ...MORE

Subject: Mathematics   |   Topic: Calculus  |   ID: 155655

 $ 1  

C1

Find the area of the shaded region of the circle of radius a, if the chord is h units (0 < h ...MORE

Subject: Mathematics   |   Topic: Calculus  |   ID: 157739

 $ 2.0  

C2

Integration by parts or simplest method ...MORE

Subject: Mathematics   |   Topic: Calculus  |   ID: 157741

 $ 2.0  

C3

Carbon-14 dating assumes that the carbon dioxide on Earth today has the same radioactive content as it did centuries ago. If this is true, the amount of 14C absorbed by a tree that grew several centuries ago should be the same as the amount of 14C absorbed by a tree growing today.
A piece of ancient charcoal contains only 15% as much of the radioactive carbon as a piece of modern charcoal.
How long ago was the tree burned to make the ancient charcoal?
(The half-life of 14C is 5715 years.) ...MORE

Subject: Mathematics   |   Topic: Calculus  |   ID: 157742

 $ 2.0  
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