Determine nonnegative integer
It turns out that every nonnegative integer can be written as a sum of four perfect squares. In contrast, show that if n is congruent to 7 (mod 8), then n cannot be written as a sum of three perfect squares. Show your proof.
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Write a function named oddity which will recieve an array of numbers. The function will then return an array of the odd numbers from the input array.
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Consider applying newton,s method to find the root alpha = 0 of the equation sin(x)=0 . Find the maximal interval(-r,r) for which the Newton method iterates will converge to alpha for any choice of x0 in (-r,r).
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A ship is streaming northward at the rate 10 km hr ^-1.The surface pressure raises toward the northwest at the rate of 5 pa km^-1. Determine the pressure tendency recorded at a nearby island station if the pressure aboard the ship decreases at a
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