Question # 1

The st. lines whose direction cosines satisfy al + bm + cn = 0, fmn + gnl + hlm=0 are perpendicular if

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The line through the centre and perpendicular to the transverse axis is called the

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Major axis

Minor axis

Focal axis

Conjugate axis

The sum even binomial coefficient of (3+2x)5 is ______term

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16

30

8

32

The greatest integer which divides the number 101¹⁰⁰- 1 is

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100

1000

10000

100000

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

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71

-22

27

28

What is the period of 5 cot x=?

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π

-π

π/2

2π

O (0,0)is called:

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Position vector

Free vector

Unite vector

Null vector

A conjunction of two statement p and q is true only if

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p is true

q is true

Both p and q are true

both p and q are false

The law of consines is

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The number of subsets of a set having three elements is

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4

6

8

none of these

Two matrices A and B are conformable for multiplication (AB) if and only if

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Addition

Multiplication

Division

Subtraction

1+2+3+......+n=?

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n(n +1)/2

n +1/2

n(n +1)(2n +1)/6

n³

ωⁿ = ?, when n = 3k

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0

ω

1

1 / ω

Domain of Y = csc x is

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R - nπ, n ε I

R

R -nπ/2,nεI

All negative Integers

If Cⁿ_r, Pⁿ_r = 24:1 then r = ?

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1

2

3

4

d/dx [cos x²] =________

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-2x cos x²

-2x² sin x²

x² sin x

-2x² sin x²

(x+2)² = x² +4x +4 is

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1

2

3

4

Which of the following is the solution of Cot²x = 1/√3

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π/5

π/3

π/7

π/9

If Cosθ =0, Then θ=

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nπ/2

(2n + 1)π/2

(2n - 1)π/2

(n ±1)π/2

A function F(x) is called even if

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F(x) = F(-x)

F(x) = -F(x)

2F(x) = 0

The average of first 100 integers is=

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50 1/2

25 1/4

100

5050

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