Question # 1

The product of complex numbers (a,b) and (c,d) is

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(ac, bd)

(ac-bd, ad+bc)

(ab,cd)

(ac+bd,ad-bc)

Which one represents a sequence

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an

Sn

a(n)

{an}

A square matrix A = [aij] is upper triangular when

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cij = 0

bij = 0

aij = 0 for all i > j

dij = 0

The exact degree value of the function sin-1( -√3/2) is

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70^ο

50^ο

90^ο

60^ο

Which one is not defined∀n∈Z+

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-n!

n!

(-n)!

n!+0!=n!+1

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Associative property of addition

Associative property of multiplication

Commutative property of addition

Commutative property of multiplication

r + 3 >5 then which is true

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r + 2 > 4

r + 2 < 4

r + 2 = 4

None

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none of these

If n is odd then the middle terms in the expansion of (a + x)ⁿare

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4^1+x+ 4^1-x= 10 is called

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Reciprocal equation

Exponential equation

Radical equation

None of these

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