Question

на
perpendicular to x-y plane
show that 2
x+3y +7=0 represents​

Answer 1

We have,

2x+5y+7=0

Let, the plane=2,5,0

Equation of xy-plane z=0

So, ratio of normal to the plane are 0,0,1

∴a1 ×a2+a1×a2 +a1 ×a2

=2×0+5×0+0×7

=0+0+0

=0

THANK U AND MARK AS BRAINLIEST