Question # 1

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If a₁and r are the first term and the common ratio respectively then (n + 1)th term of the G.P. is

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0

a₁r^n-1

a₁rⁿ⁺¹

a₁rⁿ

The sixth term of the sequence 1,3,12,60....is

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1500

72

2160

2520

The number of terms in the expansion of (a + b)⁹is

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10

11

9

12

Sin^-1(-x)=

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Cos^-11/x

- Sin^-1X

Cot^-1X

None of these

If f(x) = x³- 2x²+ 4x -1, then f(-2) = ?

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0

-25

5

45

i² =

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1

2

-1

0

Given two independent event A and B such that P(A) = 0.30 and P(B) = 0.60. Probability of getting neither A nor B is

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0.28

0.13

0.12

0.42

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0

-1

1/2

1

An equation which holds good for all values of variables is called

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Equation

Conditional equation

Constant

None

The angle between the vectors 3i + j - k and 2i - j + k is

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The point (1,3) is one solution of

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3x + 5y > 29

3x + 5y < 7

x + 2y < 4

x + 4y > 3

For all points (x,y) in third quadrant

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x > 0 , y < 0

x > 0 , y > 0

x < 0 , y < 0

x < 0 , y > 0

The conic is a parabola if

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e < 1

e > 1

e = 1

None of these

A sequence whose reciprocal is an A.P is called

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Oscillator

H.P

G.P

None of these

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Reciprocal equation

Exponential equation

Radical equation

None of these

2π+θwill have terminal side in Quad

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I

II

III

IV

The mid point of the line segment joining the points (3,-1) and (-3,1) is

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(3,-1)

(0,0)

(2,2)

(4,4)

Range of cotθis

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(+∞to -∞)

(-1 to +1)

(-5 to +5)

Set of even numbers only

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a constant function

linear function

quadratic funtion

none of these

The term independent of x is the expansion (x³+1/x)¹²

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295

495

395

722

π is the ration of

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Area of a circle to its diameter

Area of a circle to its radius

Circumference of a circle to its diameter

Circumference of circle to its radius

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3/4

-3/4

4/3

-4/3

x²+ x - 6 = 0 is

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An equation

An identity

A polynomial

None of these

Cofactor of an element a_ijis defined by

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(-1)^i+j|A|

(-1)^i+jM_ij

(-1)^i+jM^-1

None of these

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The number of standard parabolic functions are is

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4

2

3

1

The period of tan x/7 is

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3π

7π

15π

5π

p, q, r and s are integers. If the A.M. of the roots of x2- px + q2= 0 and G.M. of the roots of x2- rx + s2= 0 are equal, then

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q is an odd integer

r is an even integer

p is an even integer

s is an odd integer

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