CBSE Class 10 Answered
for given points A(2,4) and B(-3,b) if AB = root of 26 find the possible values of B
Asked by | 19 Dec, 2012, 10:19: PM
Expert Answer
Using distance formula,
AB2 = (-3-2)2 + (b-4)2 = 26
25 + b2 + 16 - 8b = 26
b2 - 8b + 15 = 0
(b - 5) (b - 3) = 0
Thus, b = 5 or 3
Answered by | 20 Dec, 2012, 09:48: AM
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