If point (a, b) is in the second quadrant, in what quadrant is (a,-b). (-a, b), (-a,-b), (b, a)

Step-by-step explanation:

by using these equations we can find the location by rotating and counting the quadrants. if (a,b) is the og pair, then

(a,b)>(a,-b)= quadrant 3

(a,b)>(-a,b)=quadrant 1

(a.b)>(-a,-b)= quadrant 4

(a,b)>(b,a)= quadrant 2

0

Step-by-step explanation:

Lets substitute m=21 and n=12 into the expression

1/3m-1-1/2n

=1/3(21)-1-1/2(12)

=7-1-6

=0