Question # 1

If A = [a_ij] is (m x n) matrix, then transpose of A is of the order

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m x m

m x n

n x n

n x m

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20

10

0

None of these

The period of 2 cos x is

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30π

7π

5π

2π

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In R the left cancellation property w.r.t addition is

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Which of the following is an identity matrix?

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none of these

Period of Tangent function is

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0°

-π

π

2π

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1

2

0

4

The law of sines is

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The positive value of k for which the equation x2 + kx + 64 = 0 has one of the roots 0

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4

64

8

All values of k

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

A∪(A∪B)= --------------------

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B

A

A∪B

None of these

A polynomial of arbitrary degree

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f(x) = o

f(x) = x

f(x) = a

f(x) = ax + b,a ≠ 0

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2x + 3

x²+ 3 + c

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The law of sines

The law of consines

The law of tangents

None of these

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The magnitude of vector a 2i-7j is

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√23

√43

3

√53

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1

2

3/2

5/2

Empty set is

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Not the member of real numbers

Infinite set

Finite set

Not subset of every set

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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

Ifθ= 60° then

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sinθ= 1/2

tanθ= cot 30°

θ=π/4

secθ= 4

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The modulus of a vector i-i+ k is:

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√3

1

√2

∞

The vector i = [1,0] is called unit vector along:

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x-axis

y - axis

z- axis

Botha a and y-axis

An unbiased die is thrown. Then the probability of getting a prime is

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1/2

2/3

3/4

None of these

The decimal fraction in which we have finite number of digits in its decimal part is called.

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recurring decimal fraction

Non terminating faction

Non recurring fraction

terminating decimal fraction

cos 2α=

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1 - 2 sin²α

sin ²α+ cos²β

sin²α- cos²β

None of these

Sec 30° = ______

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A

A'

U

A non-terminating, non-recurring decimal represent

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A natural number

A rational number

An irrational number

A prime number

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