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A natural number less than or equal to 2...

A natural number less than or equal to 200 is written down at random. The probability of the number being a perfect square is _______.

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A DAS GUPTA-Miscellaneous Exercises-Exercise
  1. lim(n to ∞) frac{a^n}{n!} is equal to .

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  2. The differential coefficient of 2^x w.r.t. x^2 is.

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  3. A natural number less than or equal to 200 is written down at random....

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  4. A box contains 100 tickets numbered 1, 2, 3, ... ,100. Two tickets ar...

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  5. Prove that two parabolas having the same focus and their axes in oppos...

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  6. If a, b, c and d are positive real numbers such that a+b+c+d= 1 then p...

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  7. A vertical lamp-post of height h stands at a point on the boundary of...

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  8. Find the equations of straight lines which pass through the intersecti...

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  9. The circle x^2+y^2=1 cuts the x-axis at Pa n dQdot Another circle with...

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  10. Solve - frac{sin^(3) frac{x}{2} -cos^(3) frac{x}{2}}{2 +sinx} = cosx/3

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  11. let f(x) be the polynomial function. It satisfies the equation 2 +f(x)...

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  12. Evaluate int(0)^(pi)(e^(cosx))/(e^(cosx)+e^(-cosx))dx.

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  13. Find the co-ordinates of all the points P on the ellipse, x^2/a^2+y^2/...

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  14. Find the equation of a curve passing through the point (1.1) if the pe...

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  15. Solve: (x^2 + 4y^2 + 4xy) dy = (x + 2y + 1) dx.

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  16. If the normal to the ellipse (x^(2))/9+(y^(2))/4=1 which is farthest f...

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  17. sum(n=0)^oo1/(n !)[sum(k=0)^n(k+1)int0^1 2^(-(k+1)x)dx]

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  18. Consider the family of circles x^2 + y^2= r^2 2 lt r lt 5. If in the f...

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  19. Let T1, T2 and be two tangents drawn from (-2, 0) onto the circle C:x^...

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  20. The equation of two equal sides AB and AC of an isosceies triangle ABC...

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