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If the line ax+by+c=0,abne0, is a tangen...

If the line `ax+by+c=0,abne0`, is a tangent to the curve `xy=1-2x`. Then

A

`agt0,blt0`

B

`agt0,bgt0`

C

`alt0,bgt0`

D

`alt0,blt0`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2017-Multiple Choice Questions
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  2. The area of the figure bounded by the parabolas x=-2y^(2) and x=1-3y^(...

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  3. Tangents are drawn to the ellipse (x^(2))/(9)+(y^(2))/(5)=1 at the end...

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  4. The value of K in order that f(x)=sinx-cosx-Kx+5 decreases for all pos...

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  6. If the sum of two unit vectors is a unit vector. Then the magnitude of...

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  7. Let alpha and beta be the roots of x^(2)+x+1=0. If n be positive integ...

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  8. For real x, the greatest value of (x^(2)+2x+4)/(2x^(2)+4x+9) is

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  9. Let A=((1,1,1),(0,1,1),(0,0,1)). Then for positive integer n. A^(n) is

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  10. Let a, b, c be such that b(a+c)ne0. If |(a,a+1,a-1),(-b,b+1,b-1),(c,...

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  11. Let f: R rarr R be twice continuously differentiable. Let f(0)=f(1)=f'...

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  12. If f(x)=x^(n), n being a non-negative integer, then the values of n fo...

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  13. Let f be a non-constant continuous function for all xge0. Let f satisf...

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  14. If the line ax+by+c=0,abne0, is a tangent to the curve xy=1-2x. Then

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  15. Two particles move in the same straight line starting at the same mome...

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  16. The complex number z satisfying the equation |z-i|=|z+1|=1 is

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  17. On R, the set of real numbers, a relation rho is defined as 'a rhob if...

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  18. If a,b in {1,2,3} and the equation ax^(2)+bx+1=0 has real roots, then

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  19. If the tangent to y^(2)=4ax at the point (at^(2),2at) where |t|gt1 is ...

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  20. The focus of the conic x^(2)-6x+4y+1=0 is

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