Question

Dude 13 into two partz zuek that the product of square of one part
ad the cate oiarsiker part 3 Tizzimum​

Answer 1

Answer:

ANSWER

Let the first part be y and other part =(20−y)

f(y)=(20−y)y

3

=20y

3

−y

4

For maximum and minimum,

dx

dy

=0

dx

dy

=60y

2

−4y

3

4y

2

(15−y)=0

y=15

dx

2

d

2

y

=120y−12y

2

when y=15

dx

2

d

2

y

=120×15−12×15

2

<0

20 can be divided into 15 and 5