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value oflim(xrarr0)(cosx-1)/x^2is...

value of`lim_(xrarr0)(cosx-1)/x^2`is

A

a)-1/2

B

b)2

C

c)1

D

d)2

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 5-EXERCISE
  1. The equation of a straight line which intersects the axes in equal len...

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  2. Number of tangents of x^2 + y^2 - 25 = 0 on (4, +-3) are

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  3. value oflim(xrarr0)(cosx-1)/x^2is

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  4. If at x = t, the derivative of f(x) is f’(t) then.the value oflim(xtot...

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  5. If the odds in favour of an event are 7 :1, then the probability of oc...

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  6. Mode of .2, 7, 5, 3, 7, 1, 6, 9, 7, 3, 6, 3 is

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  7. For any two sets A and B, Prove that A cup (Acap B) = A.

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  8. Show that f(x) = log [x + sqrt(1 + x^2)] is a odd function.

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  9. If tan 26^@ and tan 19^@ are the roots of the equation ax^2 - bx -f c ...

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  10. If tan15^@=x.then show that x^2+2sqrt3x-1=0

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  11. In a quadratic equation of the form ax^2 + bx + c = 6 the co-efficient...

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  12. Show that. sqrt i+sqrt-i=sqrt2

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  13. Prove that by using the principle of mathematical induction for all n...

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  14. In a n sided polygon joining by straight line all the angular points. ...

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  15. Find the equation of a straight line passes through (-3, 10) and the l...

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  16. Find the ratio in which the straight line 3x + y = 9 divides the line ...

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  17. Prove that: lim(xrarr0)tanx/x=1

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  18. If.y = tan^-1 (sec x + tan x), show that ,dy/dx=1/2 .

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  19. A and B are two independent event. It P(A) = 1/2 and P(A cup B)=2/3,fi...

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  20. Find the mean deviation with respect ' to mean value :18,22,33,42,53,...

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