3 years ago

I need help oun this ASAP.

Mathematics

1 answer:

romanna [79]3 years ago

3 0

$6.4\cdot10^5-5.4\cdot10^4=
10^5(6.4-0.54)=
10^5\cdot5.86=5.86\cdot10^5$

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We know equation of tangent plane at the point $(x_0,y_0,z_0)[/tex] is,

$z=f(x_0,y_0)+f_x(x_0,y_0)(x-x_0)+f_y(x_0,y_0)(y-y_0)\hfill (1)$

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$f_y=-\frac{6}{5}x\implies f_y(5,-1,1)=-6$

Substitute all these values in (1) we get,

$z=\frac{6}{5}(x-5)-6(y+1)-\frac{6}{5}$

$\therefore z=\frac{6}{5}(x-5y-11)$

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