Question # 1

The third term of the sequence a_n= (-1)^n-1(n-7) is ______

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8

4

-4

8

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3.5+5.4=5.4+3.5 =8.9 this property of addition is called

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additive identity

assoclative property

commulative property

closure property

The differential equation representing the family of curves y = A cos (x + B), where A, B are parameters, is

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The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

The area between the x-axis and the curve y = x² + 1 from x = 1 to 2 is:

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15/6

15/4

10/4

10/3

tan^-1x > cot^-1x holds for

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x > 1

x < 1

x = 1

All values of x

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0

1

Ifα,β are non-real roots of ax2 + bx +c =0 (a,b,c∈ Q),then

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α = β

αβ = 1

α = β

α = 1

The domain of the principal tan function is

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The solution set of the inequality ax + by < c is

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straight line

half plane

parabola

none of these

The set of all positive even integers is

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Φ

{1,2,3}

{Φ}

{0}

The perpendicular bisector of any chord of a circle

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Passes through the center of the circle

Does not pass through the center of the circle

May or may not pass through the center of the circle

None of these

Partial fraction of 1/x³-1 will be of the form

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Conjugate pair

ordered pair

reciprocal pair

quadratic function

If A and B are two events then P(A∪B) =? (when A and B are disjoint)

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P(A) - P(B)

P(A) x P(B)

P(A) + P(B)

P(A) + P(B) -P(A∩B)

Ab > 0 and a > 0 then

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a > b

a < b

a = b

None

The common difference of the sequence 7,4,1......is

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1

-3

5

0

Given X, Y are any two sets such that number of elements in X=28, number of elements in set Y=28, and number of elements in set X∪Y=54, then number of elements in set X∩Y=

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-7 + 2i

7 + 2i

7-2i

√53

Which is not a half plane

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ax + by < c

ax + by > c

Both A and B

None

A die is thrown what is the probability that there is a prime number on the top?

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1/2

1/3

1/6

2/3

The sum of the series 1+5+9+13+17+21+25+29 is:

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10 cm

20 cm

30 cm

40 cm

1/x² -1 = ? (in case of making partial fraction)

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Ax +B/x² -1

A/x + B/ x- 1

A/ x+1 + B/x-1

None

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