2 years ago

Please Guys -4n(5n+6)-5(3+3n)

Mathematics

1 answer:

Ratling [72]2 years ago

5 0

Answer:

I tried this but i got it wrong it is not b on the test thing

Step-by-step explanation:

oop

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_ 1. If U = {1,2,3,4,5) and A= {2,4} then A' should be?

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If U={1,2,3,4,5) and A={2,4) then A' should be

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3 years ago

G(x)=-2x-9 what is g(-7)

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This extreme value problem has a solution with both a maximum value and a minimum value. use lagrange multipliers to find the ex

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$L(x,y,z,\lambda)=10x+10y+2z+\lambda(5x^2+5y^2+2z^2-42)$

$L_x=10+10\lambda x=0\implies1+\lambda x=0$

$L_y=10+10\lambda y=0\implies1+\lambda y=0$

$L_z=2+4\lambda z=0\implies1+2\lambda z=0$

$L_\lambda=5x^2+5y^2+2z^2-42=0$

$\begin{cases}L_x=0\\L_y=0\\L_z=0\end{cases}\implies1+\lambda x=1+\lambda y=1+2\lambda z=0\implies x=y=2z$

$5x^2+5y^2+2z^2=5(2z)^2+5(2z)^2+2z^2=42z^2=42\implies z^2=1$

$z^2=1\implies z=\pm1\implies x=y=\pm2$

There are two critical points, at which we have

$f\left(2,2,1\right)=42\text{ (a maximum value)}$

$f\left(-2,-2,-1\right)=-42\text{ (a minimum value)}$

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3 years ago