Question # 1

The roots of (b-c)x2+(c-a) x+a-b=0 are equal if

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2b = a+c

2a = b+c

2c = a+b

a + b + c =0

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If nis positive integers, then 2ⁿ>2n+1, only when

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n≤ 3

n≥ 3

n≤ 2

n≤ 1

If a,βare the roots of the equation x2 - 8x + p = 0 and a2 + β2= 40,then value of p is

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8

12

10

14

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

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A

B

U

None of these

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y/x

x/y

y/z

None

If the angle of a triangle are in the ratio 2 : 3 : 7, the triangle is

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Obtuse

Acute

Right angle

Isosceles

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What is the 26th term of the sequence, if its general term is a_{n = (-1)}ⁿ⁺¹

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2

26

27

1

Two circles x2 +y2 +8x -9= 0 and x2+y2+6y +k =0 touchinternallyif the value of k is

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k = 9

k = ±9

k=-9

k=11

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1

0

3

-3

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4x + 1

4x

2x³

none of these

The law of consines is

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The trigonometric function are continuous whenever

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They are defined

their limit exist

Their period is given

All are incorrect

The period sin²θis

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π²

π

2π

π/2

f(x) = ax + b will be a constant function if

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a = 1 , b = 1

a = 1 , b = 0

The last term of (1+2x)-2

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(-1)-2 (2x)-2

(-1)-4(-2x)-2

(-1)-3(2x)-3

Does not exist

The middle term of the expansion (1 + 2x)⁶is ______

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1st term

4th term

2nd term

5th term

Which of the following is the definition of singleton

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The objects in a set

A set having no element

A set having no subset

None of these

When the angle between the ground and the sun is 30^𝜊,flag pole costss a shadow of 40 mg long. the height of the top of the flag is

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25m

23m

12m

29m

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Arithmetic mean between x - 3 and x + 5 is

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x + 1

x + 2

x + 3

x + 4

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At

-A

A

A-1

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Coordinates of the focus of the parabola x² - 4x -8y-4=0 are:

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(0,2)

(,0,1)

(2,0)

(1,2)

O (0,0)is called:

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Position vector

Free vector

Unite vector

Null vector

If n € N , then n(n+3) is always

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Multiple of 3

Multiple of 6

odd

even

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A

0

Unit vector

None

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A

A'

U

A A'

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