Question # 1

If m and n be two scalars, then (m+n) g =

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0

m+n

m▁a+n▁a

ma - m▁a

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At

-A

A

A-1

If a (p + q)²+ bpq +c = 0 and a (p + r)²+ 2 bpr + c = 0, then qr equals

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p²+ c/a

p²+ a/c

p²+ c/a

p²- c/a

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Diagonal matrix

Scalar matrix

Triangular matrix

Identity matrix

A line segment whose end points lie on a circle is called

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The secant of the circle

The arc of the circle

The chord of the circle

The circumference of the circle

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H₁, H₂, H₃, .... H_nare called n harmonic means between a and b if a, H₁, H₂, H₃, ... H_nb are in

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H.P.

G.P.

A.P.

None of these

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(a,b) +(-a,-b) =

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(0,0)

(a,b)

(-a,-b)

(1,1)

The conjugate of √5 i is

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√5

-√5 i

i

5i

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0

1

undefined

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