Question # 1

A statement which is either true or false is called

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Induction

Deduction

Propositicon

Logic

f(x) = ax + b will be an identity function if

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a = 1 , b = 1

a = 1 , b = 0

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3

6

0

None of these

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The parametric equations of a circle are

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The function {f(x,y)|y = ax2 +bx +c} is

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One-one function

Constant function

Onto function

Quadratic function

If the matrices A and B have the order 1 x 10 and 10 x 1 then order of AB is

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1 x 1

1 x 10

10 x 10

10 x 1

The seventh term of (x3+1/x)8is

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71

-22

27

28

Domain of tangent function is

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How many signals can be given by 5 flags of different colours, using 3 flags at a time

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120

60

24

15

(a^-1)^-1=

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a^-1

a

-a

None of above

How many terms of the A.P 3,6,9,12,15...........must be taken to make the sum 108

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8

6

7

36

If x,y are two -ve distinct numbers then

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A>G>H

A<G<H

A=G=H

None of these

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cos 2x

2 cos 2x

2 sin2x

-2 cos2x

5x³+ 3x - is a ______

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Polynomial of degree 3

Polynomial of degree 2

Polynomial of degree 1

Polynomial of degree 0

The different of tan x is

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sec2 x

ln |sec x|

sec2 xdx

-cos ec2 x

The square matrix A is skew-symmetric when At =

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-B

-C

-A

-D

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The period of tan x/7 is

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3π

7π

15π

5π

Five engineering, four mathematics, two chemistry books are placed on a table at random.The probability that the books of each kind are all together is

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Name the property used in 1000 x 1 = 1000

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additive inverse

multiplicative inverse

additive identity

multiplicative identity

sin(a-90°)=______;

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sina

cosa

-sinθ

-cosa

The equation ax²+ 2hxy + by²+2gx + 2fy + c =0 represents an ellipse if

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The parabolay2=4ax open up if

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a<0

a≠0

a>0

All are incorrect

Three unbiased coins are tossed. Then the probabilities of getting two heads is

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3/8

1/8

1/4

None of these

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The slope of the tangent at the point (h,h) of the circle x2 +y2 =a2 is

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0

1

-1

h

cotθ= sin 2θifθ=

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1

12

5

29

E-radius corresponding to < C is

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