Question # 1

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One-to-one and onto

One-to-one but not on to

Onto but not one-to-one

Neither one-to-one nor onto

What is the circular measure of the angle between the hands of a watch at 4 O'clock

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If a, b, c are in AP., a, b, c are in G.P. then A, m²b, c are in

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A.P.

G.P.

H.P.

None of these

A second degree equation in which coefficients of x²and y²are equal and there is no product therm xy represents:

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a parabola

a circle

an ellipse

a pair of lines

H₁, H₂, H₃, .... H_nare called n harmonic means between a and b if a, H₁, H₂, H₃, ... H_nb are in

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H.P.

G.P.

A.P.

None of these

The value of cos(cos-1 1/2) is

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1/2

√3/2

-1/2

1/√2

Which of the following is a vector.

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distance

temperature

energy

acceleration

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30°

60°

45°

None of these

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0

1

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A natural number

A rational number

An irrational number

A whole number

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The value of n, when ⁿP₂= 20 is

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3

4

6

5

The fifth term of the sequence a_n= 2n + 3 is ______

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13

-13

8

3

The radian measure of the central angle of an arc 50 m long on a circle of radius 25 m is

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3

2

1

If x is an image of y under the function f. This can be written as

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y = f(x)

f(x) = 0

x = f(y)

f(y) =0

An integral of 1/x dx is:

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1/x²

1/-x²

1/lnx

lnx

The parabolay2=4ax open up if

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a<0

a≠0

a>0

All are incorrect

The unit vector along x-axis is

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none of these

The coefficient of xn in the expansion of (1-2x)-1 is

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(-1)n2n

2n

(-1)(n+1)xr

(n+1)2n

If a₁= 3, r = 2, then the nth term of the G.P. is

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2.3^n-1

3.2ⁿ

3.2ⁿ⁺¹

3.2^n-1

Which term of the A.P 5,8,11,24.............is 320

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104th

106th

105th

64th

A line segment whose end points lie on a circle is called

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The secant of the circle

The arc of the circle

The chord of the circle

The circumference of the circle

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The equation of the circle witch centre (-3, 5) and radius 7 is

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(x-3)²+ (y+5)²= 7²

(x-3)²+ (y-5)²= 7²

(x+3)²+ (y+5)²= 7²

(x+3)²+ (y-5)²= 7²

In any triangle ABC,with usual notationαsinβ =____;

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b sinα

bsinβ

αsinα

None of these

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