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Question

Equation of the line passing through the points (2,3) and making intercept of 2 units between the lines y+2x=3, y+2x=5 is

A
x=2
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B
y=3
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C
x+y=5
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D
x+y=7
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Solution

The correct option is A x=2
SnSn=5n+49n+6

n2[2a+(n1)d]n2[2a+(n1)]d=5n+49n+6

a+(n12)da+(n12)d=5n+49n+6........(i)

a+17da+17d=5(35)+49(35)+6=179321

T18T18=179321

T18T18=a+17da+17d...........(ii)

Comparing equation (i) and (ii),

n12=17

n1=34

n=35
m=2

Let slope of line PA=m
tanα=m1m21+m1m2

12=m(2)12m

2m+4=12m
4m=3

m=34

Slope of line PA=34

Equation of line which passes through (2,3) and has slope =34

yy1=m(xx1)

y3=34(x2)

4y12=3x+6

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