Question # 1

Which one is not defined∀n∈Z+

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-n!

n!

(-n)!

n!+0!=n!+1

∀x,y∈ R and x < 0, y < 0, which one is true

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xy < o

xy = o

xy > o

None of these

If the matrices A and B are conformable for multiplication then (AB)^t= ______

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AB

A^tB^t

B^tA^t

A^tB

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For non-trival solution |A| is

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A = 0

A^t= 0

|A| = 0

None of these

The symbol of irrational is

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W

N

Q

Q'

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x = r2, y = 1 are the parametric equation of

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Circle

Hyperbola

Ellipse

Parabola

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0

U

u/2

log u

Matrices are represented by

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Natural numbers

Real numbers

Small letters

Capital letters

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184

none of these

If a and b are real numbers then a+b is also real number this law is called

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associative law of addition

closure law of addition

Distributive law of addition

Commutative law of addition

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3/4

r

v

None of these

If a₁, r and a_nare the first term, common ratio and the nth term respectively of a G. P. then a_n=

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a₁rⁿ

a₁r^n-1

a₁rⁿ⁺¹

a₁r

If in a set of real no a is additive identity then

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a+a = 2a

a+a = 1

a+a = 0

None of these

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P(A) + P(B)

P(A) - P(B)

P(A) . P(B)

P(A) / P(B)

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How many term are there in the A.P, in which a₁ = 11 , a_n =68, d=3

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30

27

20

21

The distance of the point (a, b) from x-axis is

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a

b

a + b

If x³- x²+ 5x+ 4 is divided by x - 2, then the reminder is

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0

2

18

14

Two tangents drawn from (2,3) to the circle x2+y2 =9 are

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Real and distinct

Imaginary

Real and coincident

None of these

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The value of i⁴ⁿ⁺¹

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1

-1

i

i²

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The minimum value of the quadratic function f(x) = x2 +6x -2, is

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11

6

-11

13

How many arrangements of the letters of the word ADDING can be made

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If x - 2 is a factor of ax2- 12x + a = 2a, then a = ______

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-5

5

0

1

√(-1b) =?

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b i

-i b

b2

i√b

The standard parabolic form of the equation f(x) = x² +4 x +1 is

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x(x+4)+1

(x+2)²-3

(x+4)³ + 9

x(x-2)²+1

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