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marcos86
11.02.2021 •
Mathematics
A soup can has a DIAMETER of 2cm and a height of 5.5 cm. What s the volume of the soup can? PLEASE SHOW WORK
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Ответ:
This factors into (p+1)^2. Set this = 0 and solve for p: p=-1 and p=-1 (2 real, equal roots).
But p represents cos x. Thus, cos x = -1. On the interval [0, 2pi], cos x = -1 for only one x value: pi. Thus, x = pi. Note that x = pi+ 2pi = 3pi is another solution, since the cosine function is periodic and thus repeats itself every 2pi radians.