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VARVARA [1.3K]
3 years ago
13

Find y prime if arctan(xy) = 1 + (x^2*y)

Mathematics
1 answer:
steposvetlana [31]3 years ago
3 0
I'm pretty sure that these tips which I give you will make you able to sort things out.
According to the fact that <span>derivative of the function f(x) = y, you an use these formulae in order to calculate the needed result : </span>arctan(xy) = 1+ x^2*y =\ \textgreater \  xy = tan(1+x^2y)
y + xy' = sec^2(1+x^2y)(2x*y + y'*x^2)
Do hope this will lead you to the corect answer! Regards.
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Answer: z^2-4
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z^2-4
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3 years ago
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Complete the sentence 20000 is 1/10 of
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3 years ago
Kay cuts three (3) pizzas so each of her friend at the table receives ¾ pizza. How many friends are at the table?
jarptica [38.1K]

Answer: B

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7 0
2 years ago
The temperature function (in degrees Fahrenheit) in a three dimensional space is given by T(x, y, z) = 3x + 6y - 6z + 1. A bee i
madam [21]

You're looking for the extreme values of T(x,y,z)=3x+6y-6z+1 subject to x^2+y^2+z^2=9. The Lagrangian is

L(x,y,z,\lambda)=3x+6y-6z+1+\lambda(x^2+y^2+z^2-9)

with critical wherever the partial derivatives vanish:

L_x=3+2\lambda x=0\implies x=-\dfrac3{2\lambda}

L_y=6+2\lambda y=0\implies y=-\dfrac3\lambda

L_z=-6+2\lambda z=0\implies z=\dfrac3\lambda

L_\lambda=x^2+y^2+z^2-9=0

Substituting the first three solutions into the last equation gives

\dfrac9{4\lambda^2}+\dfrac9{\lambda^2}+\dfrac9{\lambda^2}=9

\implies\lambda=\pm\dfrac32

\implies x=1,y=2,z=-2\text{ or }x=-1,y=-2,z=2

At these points, we have

T(1,2,-2)=28

T(-1,-2,2)=-26

so the highest temperature the bee can experience is 28º F at the point (1, 2, -2), and the lowest is -26º F at the point (-1, -2, 2).

6 0
3 years ago
Elise bought a dress that was discounted 35% off of
bixtya [17]

Answer:

a: $49

b: $91

Explaination:

a: 35% of 140 = 49

b: 140 - 49 = 91

You're welcome! <3

6 0
2 years ago
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