Q.
The slope of a straight line through A(3,2) is 3/4 then the coordinates of the two points on the line that are 5 units away from A are
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a
(-7,5) (1,-1)
b
(7,5) (-1,-1)
c
(6,9) (-2,4)
d
(7,3) (-2,1)
answer is B.
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Detailed Solution
(x1,y1)=(3,2)tanθ=34 sinθ=35, cosθ=45(x,y)=(x1±rcosθ,y1±rsinθ) =3±545, 2±535 =3±4, 2±3 =(7, 5) (-1, -1)
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