Question

find (a+b) ÷(a- b) of a=1/2 ,b=2/3
​

Answer 1

Step-by-step explanation:

Let the pointCbe

(i,j,k)

.

Since,

BdividesAC

in the ratio

1:

2

Coordinates of

Bshould be

(

3

2+i

,

3

4+j

,

3

k+6

)

Comparing the values given already for

B, we get,

j=

5

k=

6

i=4

Answer 2

a=1/2,b=2/3

a+b=1/2+2/3

=(3+4)/6

=7/6

a-b=1/2-2/3

=(3-4)/6

=-1/6

(a+b)÷(a-b)=7/6÷(-1/6)

=-7