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The distance between the lines (x+7y)^2+...

The distance between the lines `(x+7y)^2+4sqrt(2)(x+7y)-42=0` is_____________

A

`4//5`

B

`4sqrt2`

C

2

D

`10 sqrt2`

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The correct Answer is:
A
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OBJECTIVE RD SHARMA ENGLISH-STRAIGHT LINES-Exercise
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  2. The nearest point on the line 3x- 4y = 25 from the origin is

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  7. If the line x+y-1=(lamda)/(2)=0 passing through the intersection of ...

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  8. The distance between the lines 5x+12y+65=0 and 5x+12y-39 = 0 is :

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  10. The equation of the line with slope -3//2 and which in concurrent with...

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  11. The point of intersection of the lines x/a+y/b=1 and x/b+y/a=1 lies on

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  12. Find the equation of the bisector of the obtuse angle between the line...

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  13. If the equation of the locus of a point equidistant from the points (a...

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  15. If each of the points (x1,4),(-2,y1) lies on the line joining the poin...

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  16. Equation of the line passing through the point (acos^3theta, a sin^3th...

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  17. The ends of the base of an isosceles triangle are at (2a, 0)and (0, a)...

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  18. The straight line x+y-4=0,3x+y-4=0,x+3y-4=0 form a triangle which is

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  19. Prove that the lines ax+by + c = 0, bx+ cy + a = 0 and cx+ay+b=0 are ...

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