Question # 1

In any triangle ABC, law of cosines is:

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cos x

sec x

With usual notations for triangle R equals:

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Rational numbers are:

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repeating decimals

terminatingdecimals

periodicdecimals

all of these

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0

4

1

3

The additive inverse of a matrix A is:

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A

A^-1

- A

A²

The distance between the points P(x1, y1) and Q(x2, y2) is:

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Graphs of trigonometric function within their domains are:

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line segments

sharp corners

broken lines

smooth curves

There is a solution of the equation 2 sin Θ + 1 = 0 in the quadrants:

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1 and 2

1 and 3

2 and 4

3 and 4

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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25

20

40

2a + 2b + 2c

If P(x) is a polynomial of degree m and Q(x) is a polynomial of degree n, the quotient P(x) + Q(x) will produce a polynomial of degree:

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m . n, plus a quotient

m - n, plus a remainder

m ÷ n, plus a factor

m + n, plus a remainder

A geometric series is convergent only if:

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| r | > 1

| r | < 1

| r | = 1

none of these

Arithmetic series is only possible if:

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|d| = 1

|d| < 1

|d| > 1

none

Numbers are formed by using all the digits 1, 2, 3, 4, 5, 6 on digit being repeated, then the numbers which are divisible by 5 are:

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110

120

122

124

The real part of the complex number a + bi is:

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b

-b

a

-a

A set containing finite number of elements is called:

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nullset

superset

finiteset

infiniteset

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If f(x) = arccos x, then:

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