Question # 1

r₁=

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If A is a square matrix order 3 × 3 the |kA| equals:

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k |A|

k²|A|

k³ |A|

k⁴ |A|

If s denotes the length of the arc intercepted on a circle of radius r by a central angle of α radians, then:

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s = rα

s = r + α

none of these

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4

16

8

64

For a positive integer n:

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(n+1)! = (n+1)n!

(n+1)! = (n+1)(n-1)!

n! = n(n+1)!

none of these

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diagonal matrix

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scalarmatrix

diagonalmatrix

lower triangularmatrix

uppertriangularmatrix

tan^-1 (-x) =

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tan^-1x

cot^-1x

-tan^-1x

-cot^-1x

In triangle ABC, If Γ = 90° then:

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b = c + a

Equations having a common solution are called:

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linear

quadratic

homogeneous

simultenaeous

Sum of all odd numbers between 100 and 200 is:

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6200

6500

3750

7500

An infinite sequence has no:

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nth term

last term

sum

none

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quad. I

quad. II

quad. III

quad. IV

The number of diagonals of a polygon with n sides is:

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none of these

If the roots of x² - bx + c = 0 are two consecutive integers, then: b² - 4ac =

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0

1

-1

2

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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

{2, 4, 6, 8, ...........} represents the set of:

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positive odd numbers

natural numbers

prime numbers

positive even numbers

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x-axis

y-axis

y = x

y = -x

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cos x

sec x

If two rows (or two columns) in a square matrix are identical (i.e. corresponding elements are equal), the value of the determinant is:

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0

1

-1

±1

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A is superset of B

B is superset of A

A is subset of B

A is equivalent to B

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11th Class ICS Mathematics Test Online MCQs With Answers

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