Question # 1

If Z₁ = 1+ i, Z₂ = 2+3i , then |Z₁ -Z₂| =?

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√5

√7

-1-2i

√3

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1/x

-x

2x

0.5 x

An unbiased die is thrown. Then the probability of getting a prime is

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1/2

2/3

3/4

None of these

The slope of the normal at (4,3) to the circle x²+y²=25 is

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3/4

-3/4

4/3

-4/3

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An improper rational fraction can be reduced by division to a

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Proper fraction

Polynomial

mixed form

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2x

2

The point on y²= 4ax nearest to the focus has its abciassae equal to

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-a

a

a/2

0

Sum of first n terms of an arithmetic series is

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If x lies in {0, 2π} and Cosec x = 2 then x =

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π/ 6 and 5π/6

π +2nπ

nπ

2π/3 and π/3

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

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x < x² < x²

x < x³ < x²

x² < x³ < x

x²< x < x³

Given eight points in a plane no three of which are collinear how many lines do the points determine?

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16

64

28

36

The sum of the ages of Nazish and his son is 56 years. Eight years ago. Nazish was 3 time as old as his son. How old is the son now?

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m = n

m ≠ n

mn = 1

mn = 0

What is the domain of y= Sin^-1 x?

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-1 ≤ x ≤1

1 ≤ x ≤ 1

0 ≤ x ≤ π

-π/2 ≤ x ≤ π/2

If a line passes through origin then the equation of the line is

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y = m/x

y = mx

x = my

None

The equation of the circle with center origin and radius 2√2 is

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x² + y² = 2√2

x² + y² = 8

x² - y² = 2√2

x² - y² = 8

Cos^-1 x =

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∏ = sin^-1 x

∏ + sin^-1 x

∏/2 - sin^-1 x

∏/2 +sin^-1 x

If A = (3,8) and B = (5,6) then the distance between A and B is

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2√2

2

1

6

If ab > 0 and a < 0, which of the following is negative?

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b

-b

-a

(a - b)²

The value of x, and y, when (x+iy)²=5+4i

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X=2, y=-1

X=-2, y=1

X=2, y=-i

X=2, y=2

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