You can refer to the top right for the correct answers for the both questions respectively, i have tried to no avail.

Mathematics

1 answer:

kvv77 [185]3 years ago

5 0

So i don’t think you have to calculate it, i think its asking to tell what tan Q is and cos Q is without solving for it. does that make sense?

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3 years ago

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$L(x,y,z,\lambda)=x^2+y^2+z^2+\lambda(x+y+z-6)$

with partial derivatives

$\begin{cases}L_x=2x+\lambda\\L_y=2y+\lambda\\L_z=2z+\lambda\\L_\lambda=x+y+z-6\end{cases}$

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So the smallest value for the sum of squares is $2^2+2^2+2^2=12$ when $(x,y,z)=(2,2,2)$ .