Question # 1

The approximate increase in the area of a circular disc if its diameter increased form 44cm to 44.4cm is

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0.4cm

8.8πcm

17.6 πcm

35.2πcm

In triangle ABC, in which b=95, c=34, a =52^𝜊then the value of a=

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18 cm

18.027 cm

20.7 cm

19 cm

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The three consecutive numbers a,√ab,b are in

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G.P

H.P

G.M

None of these

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2

4

8

12

For the parabola the line through focus and perpendicular to the directrix is called

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Tangent

Vertex

Axis

None

If -1 < x < 0, which of the following statements must be true?

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x < x²< x³

x < x³< x²

x²< x³< x

x²< x < x³

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The equation of the tangent at vertex to the parabola is y2 = -8(x -3)

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y=0

x=3

x=1

x=5

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Sum of two quantities is at least 20 is denoted by

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x +y =20

x +y≥ 20

x +y≠ 20

x +y≤20

Point (2,0) lies on trigonometric function f(x)=______;

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sinx

cosx

tanx

secx

If cos^-1p + cos^-1q + cos^-1r =πthen p²+ q²+ r²+ 2pqr is equal to

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3

1

2

-1

Which of the following is a quadrantal angle

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100°

200°

170°

270°

The sum of all odd numbers between 100 and 200 is

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6200

7500

6500

3750

14 is not a

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Prime number

Whole number

Even number

Real number

The line joining the center of a circle to the midpoint of the chord is

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Perpendicular to the tnagent

Perpendicular to the normal

Perpendicular to the chord

The square roots of negative numbers is called

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Real no

Complex no

Positive no

Negative no

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Range of cos x is ______

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[-1, 1]

R

Negative real numbers

R - { x | - 1 < x < 1}

The familiar plane curves, namely circle, ellipse, parabola and hyperbola are called:

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cones

conics

nappes

apex

Domain of cosec x is ______

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If|a| =|b| = |a+b|=1, then|a-b| is equal to:

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1

√3

√2

7

(A∪B)∪C= --------------------------

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A∩B(B∪C)

A∪(B∪C)

A∪(B∩C)

None of these

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184

none of these

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The value of x for which the polynomials x2 - 1 and x2 -2x + 1 vanish simultaneously is

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2

1

-1

-2

An A.P. consists of n(odd terms) and its middle term is m. then the sum of the A.P. is

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2 mn

1/2 mn

mn

mn²

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