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The length of the latus rectum of the el...

The length of the latus rectum of the ellipse `16x^(2) + 25y^(2) = 400` is:

A

5/16 unit

B

32/5 unit

C

16/5 unit

D

5/32 unit

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2011-MULTIPLE CHOICE QUESTIONS
  1. The eccentricity of the hyperbola 4x^(2)-9y^(2) =36 is:

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  2. The length of the latus rectum of the ellipse 16x^(2) + 25y^(2) = 400 ...

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  3. The vertex of the parabola y^(2) + 6x -2y + 13=0 is:

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  4. The coordinates of a moving point p are (2t^(2) + 4, 4t+6). Then its l...

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  5. The equation 8x^2+12y^2-4x + 4y-1=0 represents

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  6. If the straight line y=mx lies outside of the circle x^(2)+ y^(2) - 20...

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  7. The locus of the centre of a circle which passes through two variable ...

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  8. The coordinates of the two points lying on x + y = 4 and at a unit dis...

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  9. The intercept oil the line y = x by the circle x^2 + y^2 - 2x = 0 is A...

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  10. If the coordinates of one end of a diameter of the circle x^(2) + y^(2...

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  11. If the three points A(1,6), B(3,-4) and C(x,y) collinear then the equ...

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  12. If sin theta = (2t)/(1+t^(2)) and theta lies in the second quadrant, t...

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  13. The solution set of the inequation cos^(-1)x lt sin^(-1)x is:

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  14. The number of solutions of 2 sinx + cosx =3 is:

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  15. Let tan alpha = a/(a+1) and tan beta =1/(2a +1), then alpha + beta is:

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  16. If theta + phi =pi//4, then (1+tan theta)(1+tan phi) is equal to:

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  17. If sin theta and cos theta are the roots of the equation ax^2 - bx +...

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  18. If A and B are two matrices such that A + B and AB are both defined, t...

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  19. If A=[{:(3,x-1),(2x+3, x+2):}] is a symmetric matrix, then the value o...

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  20. If Z=|{:(1,1+2i , 5i),(1-2i, -3, 5+3i),(5i, 5-3i, 7):}|, then (i =sqrt...

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