Question # 1

Which of the following is a scalar.

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force

frequency

weight

acceleration

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Which is not included in the domain of cos^-1x

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0

1

-1

2

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Associate law of addition

Commutative law of addition

Additive identity

Closure law of addition

Roots of the equation x²- x = 2 are

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{2, -1}

{1, 0}

{2, 1}

{-2, 1}

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If Z₁= 1 + i, Z₂= 2+3i, then |Z₂- Z₁| = ?

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cosθ/2=

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What is the number of elements of the power set of {0, 1}

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1

2

3

4

The square matrix A is skew-symmetric when At=

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-B

-C

-A

-D

The order of the matrix A is 3 x 5 and that of B is 2 x 3.The order of the matrix BA is

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2 x 3

3 x 2

2 x 5

5 x 2

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2x

2

If the lines 2x-3y-1=0,3x-y-5=0 and 3x+py+8=0 meet at a unique point then

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p = -14

p = -1

p =0

p=12

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π/ 4

π/ 6

π/ 3

2π/ 3

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I andII quadrants

II andIII quadrants

III andIVquadrants

none of these

To express a single rational fraction as a sum of two or more single rational fractions which are called

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improper fractions

Partial fractions

mixed form

Polynomials

Which of the following is a vector

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length

momentum

volume

speed

If a,b,c are in arithmetic progression, then 1/a,1/b.1/c are in

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A.M

G.M

H.M

G.P

Which symbolic notation represent unary operation ?

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-

∨

∧

⇔

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(1, 1) is the in the solution of the inequality

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3x + 4y > 3

2x + 3y < 2

4x = 3y > 5

2c - 3y > 2

The liner equation ax + by = c is called _________ of the inequality ax +by > c.

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Associated equation

Non-associated equation

disjoint equation

Feasible equation

The transpose of a row matrix is a ______

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Zero matrix

Diagonal matrix

Column matrix

Row matrix

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If y=sin(ax+b) then y4=________:

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sin4(ax+b)

a4sin(ax+b)

a4cos(ax+b)

None of these

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11

61

1

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Consider the equation px2 + qx + r = 0 where p,q,r are real The roots are equal in magnitude but opposite in sign when

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q = 0, r = 0,p ≠ 0

p = 0,qr≠ 0

r = 0,pq≠ 0

q = 0, pq≠ 0

A stationary point x is a relative exterma of y= f(x) is

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f′′ (x) > 0

f′′ (x) < 0

f′′ (x) ≠ 0

f′′(x) = 0

The different of tan x is

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sec2 x

ln |sec x|

sec2 xdx

-cos ec2 x

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