Sum of even numbers in a vector
Write a function that takes a vector of numbers and returns the sum of all the even numbers in the vector.
15 days ago
Solved
Get the area of the square.
Four circles are inscribed in the square ABCD. The perimeter of each circle is *aπ*.
<<http://imgfz.com/i/UzgCJut.png>>
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You can find a doc about it in here => https://www.rapidtables.com/convert/temperature/how-kelvin-to-fahrenheit.html
x is kelvi...