Question # 1

If Z₁ = √-36, Z₂=√-25, Z₃= √-16, then what is the sum of Z₁, Z₂ and Z₃ ?

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√3 I

√7

-2-1

√5

If A and B are two events then P(A∪B) =? (when A and B are disjoint)

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P(A) - P(B)

P(A) x P(B)

P(A) + P(B)

P(A) + P(B) -P(A∩B)

If x² +y² = 4, Then dy/dx =

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2x +2y

4 -x²

-x/y

y/x

Which of the following is the subset of all sets ?

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A ≠ C

B = C

A = B

A ≠ B

If the 9^th tern of A.P is 8 and the 4^th term is 20. then the first term is

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1

2

-2

-1

A point of a solution region where two of its boundary lines intersect is called

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Boundary

Inequality

Half plane

Vertex

Sin x + Cos x=1 x=

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π

π/2

π/3

π/4

Domain of Cosecθ is

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is R but θ= nπ

is R but θ ≠ nπ

is R but θ ≠ 2nπ

is R but θ ≠ nπ/2

In the function v = 4/3 π r³, V is a function of

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3/4

r

v

π

The number of ways in which 5 distinct toys can be distributed among 3 children is

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3⁵

5³

C⁵₃

P⁵₃

The equation of the normal to the circle x² + 2² = 25 at (4,3) is

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3x -4y =0

3x -4y= 5

4x + 3y=5

4x - 3y =25

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