Question

3.
The centroid of the triangle formed by the points (1, a), (2, b) and (c?, -3) lies on the x-axis, then
(1) a + b = 6
(2) a - b = 6
(3) a + b = 3
(4) a-b=3​

Answer 1

Answer:

1+2+c/3 = 0

there fore c = - 3

a+b-3/3 =y axis value

Answer 2

Answer:

(1) a+b=6

Step-by-step explanation:

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