Question # 1

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In any triangle ABC,with usual notationαsinβ =____;

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b sinα

bsinβ

αsinα

None of these

If d₁is the distance between (0,0) and (1,2) and d₂is the distance between (0,0) and (2,1) then

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d₁= d₂

d₁<d₂

d_1>d₂

none of these

If n is add the expansion (a + x)ⁿhas middle terms

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2

3

4

5

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Scalar matrix

Identity matrix

Null matrix

Symmetric matrix

π is ______

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A complex number

A rational number

A natural number

An irrational number

Consider the equation px2 + qx + r = 0 where p,q,r are real The roots are equal in magnitude but opposite in sign when

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q = 0, r = 0,p ≠ 0

p = 0,qr≠ 0

r = 0,pq≠ 0

q = 0, pq≠ 0

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b = c

a = c

b = 0

The negation of given number is a

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Binary operation

Unary operation

Relation

None of these

The expansion (1 + x)^-3holds when

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|x| > 1

|x| < 1

x < 1

x > 1

The distance of point P(x,y) from focus in a parabola

y² =4ax, is:

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2a

a

x + a

x-a

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