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Paraphin [41]
2 years ago
12

If a and b are positive numbers, find the maximum value of f(x)=xa(1−x)b, 0≤x≤1 Your answer may depend on a and b.maximum value

=________.
Mathematics
1 answer:
xeze [42]2 years ago
5 0

Answer:

0.25ab

Step-by-step explanation:

Data provided in the question:

f(x) = xa(1−x)b, 0≤x≤1

or

f(x) = ab(x−x²)

for point of maxima and minima put f'(x) = 0

Thus,

f'(x) = ab(1 - 2x) = 0

or

1 - 2x = 0

or

x = \frac{1}{2} = 0.5

Now,

to check the condition of maxima or minima

f''(x) = ab(0 - 2) = -2ab

since,

f''(x) < 0

therefore,

x = 0.5 is point of maxima

and the maximum value at x = 0.5 of the function is

f(0.5) = ab(0.5 - 0.5²)

= ab(0.25)

= 0.25ab

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Answer:

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Step-by-step explanation:

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How do you construct angle 22 and half ​
yaroslaw [1]

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Below.

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Please help, will give brainliest if helpful : )
andrezito [222]

Answer: The dimension are 70  by 29

Step-by-step explanation:

\\The are of a rectangle is given as L X B , that means from the first statement , L X B = 2030

\\Also, the Perimeter of a rectangle is given by 2 ( L + B ), that means from the second statement 2 ( L + B ) = 198 , dividing this through by 2 , we have

\\L + B = 99

\\Combing the two equations, we have

\\LB = 2030 ........... 1

\\L + B = 99 ............ 2

\\Solving the resulting simultaneous equation

\\from equation 1 make L the subject , we have

\\L = 2030/B

\\Also, from equation 2 , make L the subject of the formula , we have

\\= 99 - B ............ **

\\Equate the two values of L , we have

\\2030 / B= 99 - B , by cross multiplying , we have

\\2030 = 99B - B^{2}  

\\This is the same as B^{2}   - 99B + 2030 = 0

\\This is a quadratic equation, solving by quadratic formula

\\ L = 70 or 29

\\substituting this value into **

\\B = 29 or 70

\\Therefore the dimensions are 70 X29

5 0
2 years ago
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