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  • Question 1
    4 / -1

    On the occasion of Diwali, each student of a class sends greeting cards to every other. If there are 20 students in the class, then the total number of greeting cards exchanged by the students is

  • Question 2
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    If all permutations of the letters of the word AGAIN are arranged as in dictionary, then fiftieth word will be

  • Question 3
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    \(\int \frac{x^{2}-2}{x^{2} \sqrt{x^{2}-1}} d x\) is equal to

  • Question 4
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    The order and degree of differential equation d2s/dt2+ 4 = 0 are

  • Question 5
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    If the mean of a binomial distribution is 25, then its standard deviation lies in the interval

  • Question 6
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    \(\operatorname{Lt}_{x \rightarrow 0} \frac{1-\cos x}{x}\)is equal to

  • Question 7
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    If the roots of the equation ax2 + bx + c = 0 are of the form k+1/k and k+2/k+1 then (a + b + c)2 is equal to

  • Question 8
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    Ten different letters of an alphabet are given. Words with five letters are formed from these given letters. Then the number of words which have at least one letter repeated is

  • Question 9
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    \(\int_{0}^{\pi / 2} \frac{\sin ^{2} x}{\sin x+\cos x} d x\) is equal to

  • Question 10
    4 / -1

    The coefficient of x5 in (1+2x+3x2+……….up to infinite term)-3/2 is

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