Question # 1

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2C

C³

1

0

A sequence of number whose reciprocals form an arithmetic sequence is called

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Geometric sequence

Arithmetic series

Harmonic sequence

Harmonic series

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2

5

7

None of these

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0

20

90

80

If A and B are skew-symmetric then (AB)t is

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At Bt

AB

-AB

BA

i³=

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-1

i

-i

1

In-radius is denoted by

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r

η

r2

R

If a,b c are sides of a triangle taken in order then a x b =

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b x c

b x a

cxa

Both a & b

The third term in the expansion of (1+2x) is

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-2x2

-4x2

2x2

4x2

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2x cos x2

2sinxcosx

- sin x2

2x sin x2

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