Question # 1

The common difference of the sequence 7,4,1......is

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1

-3

5

0

If sinθ = 1 then θ =

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2nπ +π/2

2nπ

2π +n

Nπ +π/2

Sin 720° = ________

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1

0

2

1/2

Given X, Y are any two sets such that number of elements in X=28, number of elements in set Y=28, and number of elements in set X∪Y=54, then number of elements in set X∩Y=

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-7 + 2i

7 + 2i

7-2i

√53

The line joining (1,3) to (a,b) has unit gradient then

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a-b =-2

a+b = 0

A-b =5

2a + 3b =1

Domain of Y = csc x is

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R - nπ, n ε I

R

R -nπ/2,nεI

All negative Integers

Sin (2π -θ) =______.

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Cosθ

-Sinθ

-cosθ

The value of the polynomial 3x³ + 4x² - 5x + 4 at x = -1 is

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A² + B²

A² + B²+ 2AB

A + B

A² + B² + AB+BA

d/dx [cos x²] =________

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-2x cos x²

-2x² sin x²

x² sin x

-2x² sin x²

d/dx (√x) =

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2√x

1/√x

1/2√x

None of these

If any two rows (or any two columns) of a square matrix are inter changed, the determinant of the resultant matrix is

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True

False

Fallacious

Some times true

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NAT I Engineering Mathematics MCQs With Answers

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