Question # 1

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None

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quad I

quad. II

quad. III

quad. IV

A groupoid (S) is called __________ if it is associative in S:

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group

abelian-group

semi-group

associative-group

In triangle ABC, if α = 90° then:

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none of these

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A matrix of order m×1 is called:

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row matrix

column matrix

identity matrix

scalar matrix

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p is false and q is true

both p and q are false

p is true and q is false

both p and q are true

In any triangle ABC, law of sines is:

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sin (Θ - π) =

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If A is non singular matrix then A^t is:

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singular

nonsingular

symmetric

none

If n(S) = 3 then n {P(S)} =

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2

8

16

4

A set having no element is called:

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null set

subset

singleton

superset

If two sets have no element common, they are called:

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disjoint

over lapping

dissimilar

exhaustive

Reciprocals of the terms of the geometric sequence form:

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A.P

G.P

H.P

none

The middle term in the expansion of (a+b)²⁰ is;

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10^th term

11^thterm

12^thterm

13^thterm

(1 - sin²Θ) (1 + tan²Θ) =

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0

1

Θ

-1

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singular

non-singular

rectangular

null

2 cos α cos ß =

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sin (α + ß) - sin (α - ß)

cos (α + ß) - cos (α - ß)

cos (α + ß) + cos (α - ß)

sin (α + ß) + sin (α - ß)

Number of ways of arranging 5 keys in a circular ring is:

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12

24

6

5

If S is a sample space and event E is S then P(E) is:

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0

1

>1

none

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11th Class Part 1 Mathematics Test Online MCQs With Answers

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