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If non-zero numbers a,b,c are in H.P., then the straight line `x/a+ y/b+1/c=0` always passes through a fixed point. That point is :

A

(-1, -2)

B

(-1, 2)

C

`(1, -1/2)`

D

(1, -2).

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MODERN PUBLICATION-CONIC SECTIONS-EXERCISE
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  2. The line parallel to the x-axis and passing through the intersection o...

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  3. If non-zero numbers a,b,c are in H.P., then the straight line x/a+ y/b...

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  4. If a vertex of a triangle is (1, 1) and the mid-points of two side thr...

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  5. If the circles : x^2+ y^2+2ax + cy +a=0 and x^2+ y^2-3ax+dy -1=0 inter...

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  6. A circle touches the X-axis and also touches the centre at (0,3) and r...

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  7. If a circle passes through the point (a, b) and cuts the circle x^2+ y...

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  8. An ellipse has OB as semi minor axis, F and F' its focii eccentricity ...

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  9. The locus of a point P(alpha, beta) moving under the condition that th...

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  10. A circle is given by x^2 + (y-1)^2 = 1, another circle C touches it ex...

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  11. The minimum area of the triangle formed by the tangent to (x^2)/(a^2)+...

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  12. A straight line through the point A(3,4) is such that its intercept be...

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  13. If (a,a^(2)) falls inside the angle made by the lines y = x/2 , x gt ...

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  14. If the lines 3x - 4y- 7 = 0 and 2x - 3y- 5 = 0 are two diameters of a ...

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  15. Let C be the circle with centre (0, 0) and radius 3 units. The equatio...

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  16. The locus of the vertices of the family of parabolas y=(a^3x^2)/3+(a^2...

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  17. Angle between the tangents to the curve y=x^2-5x+6 at the points (2,0)...

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  18. The axis of a parabola is along the line y=x and the distance of its v...

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  19. The equation of the common tangents to the parabola y = x^2 and y=- (x...

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  20. Let a hyperbola passes through the focus of the ellipse (x^(2))/(25)-(...

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