Find the distance between the parallel lines 3x+4y+5=0 and 6x+8y-25=0
1) -7/2 units
2)7/2 units
3) 6/2 units
4) -6/2 units
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Step-by-step explanation:
3x−4y=7−−−−(2)
are diameter of circle so, point of intersection is centre of circle.
from (1) & (2), x=1,y=−1
∴ area of circle is 154
=πr
2
=154
r
2
=
22
7
×154
=
2
7×14
r
2
=49
r=7
∴ Equation of circle with centre (1,−1) and radius 7 units
(x−1)
2
+(y+1)
2
=7
2
⇒x
2
+y
2
−2x+2y−47=0
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