Question # 1

sin(a + β)+sin(a -β) =_____;

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2cosa cosβ

2sina cosβ

2cosa sinβ

-2sina sinβ

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Symmetric

Skew-symmetric

Hermitian

Skew hermitian

The area between the x-axis the curve y =4x-x2 is :

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32/2

15

18

21

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A = C

A = B

B = C

None of these

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a = 2, b = 3

a = 3, b = 2

a = 2, b = 1, 2

a = 3, b = 3

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f(x) = x3-x/x2+1 is :

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an even function

an odd function

an even and implicit function

neither even nor a odd

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cosec x + c

-cosec x + c

-sec x + c

sec x + c

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The multiplicative inverse of -1 in the set {1-, 1} is

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1

-1

+-1

0

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