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fordkenae
27.09.2019 •
Mathematics
Find the area a of the largest rectangle that can be inscribed under the curve of the equation below in the first and second quadrants.
y = e^−x^2
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Ответ:
If the point on the curve (x,y) is in the first quadrant,the opposite corner of the rectangle will be (-x,y).
So,
f(x) = 2 x y
= e^(-x^2)
f'(x) = d/d x [e^−x^2]
= e^−x^2⋅d/dx [−x^2] =(−d/d x [x^2])e^−x^2 =−2 x e^−x^2
= x (-2 e^-x)
f'(x) = 0
where x = 0
So, x = 0
we only want the positive, real root here
f(0) = e^(-0)
= 1
Ответ:
30 degrees
Step-by-step explanation: