Question # 1

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In R, the multiplicative inverse of a is

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0

1

-a

1/a

Multiplicative inverse of "1" is

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0

±1

1

{0,1}

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cosec x + c

-cosec x + c

-sec x + c

sec x + c

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3

1

4

The position vector of the point P(a, b, c) is

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In a quadratic equation with leading co-efficient 1, a student reads the co-obtain the roots as - 15 and -4. The correct roots are

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6, 10

-6, -10

8, 8

-8, -8

Cofactor of an element aij denoted by Aij is

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(-2)i+j

Mij

(-1)i+j Mij

None of above

A function in which the second elements of the order pairs are distinct is called

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Onto function

One-one function

Identity function

Inverse function

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Right angled

Obtuse angled

Isosceles

Equilateral

The equation x2+ y2- 8x+ 6y+ 25= 0 represents

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A circle

A pair of straight lines

A point

None of these

The 10th common term between the series 3+7+11+....... and 1 + 6 +11 + ....... is

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191

193

211

None of these

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a = 4, b = 1

a = 1, b = -4

a = 0, b = 4

a = 2, b = 4

The value of sin^-1 5/13 is equal to

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Cos 5/13

Tan^-1 5/12

cos^-15/12

2 cos^-14/5

Corner point of the system x - y≤ 2,x + y≤ 4,2x -y≤ 6,x≥ 0,y≥ 0

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(1,4)

(4,2)

(3,1)

(4,1)

x²+ x - 6 = 0 is a conditional equation and it is true for

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2, 3

2, -3

-2, -3

-2, 3

A monoid (G, *) is said to be group if

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have identity element

is commutative

have inverse of each element

None of these

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0

1

2

If a +b +c =0 then which of the following is true

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a =b =c =0

a,b =b,c =c,a

a xb=b xc =c xa

None

The distance of the point (-2 , 3) from y-axis is

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2

-2

3

1

The distance of the point (2,3) from origin is

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5

2

3

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none of these

If A is any matrix then its additive inverse is

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A

A^-1

A^t

-A

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8

1/56

56

None of these

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∫ x cos dx is equal to :

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x cos x + sin x

cos x + x sin x

x cos x + x sin x

x sin x + cos x

For a positive integer n

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n! = n(n + 1)

n! = n(n+1)!

n! = n(n - 1 )

n! = n(n - 1)!

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Name the property used in a (b-c) = ab - ac

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commutative property of multiplication

distributive property of multiplication

associative property of multiplication

multiplicative inverse

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