Question # 1

The distance between the points (0 , 0) and (1, 2) is

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5

0

3

The n numbers A₁,A₂,A₃,.....A_nare called an arithmetic means between a and b if a.A₁,A₂,A₃.....A_n, b is ______

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An arithmetic series

An arithmetic sequence

A geometric sequence

A harmonic sequence

Tan 360° = _______

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-1

0

1

Undefined

The differential equation of all st. lines which are at a constant distance to form the origin is

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The equation of the circle with centre (h, k) and radius r is

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(x+ h)²+ (y+ k)²= r²

(x+ h)²+ (y - k)²= r²

(x - h)²+ (y+ k)²= r²

(x - h)²+ (y - k)²= r²

The sum of an infinite geometric series exist if

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| r | < 1

| r | > 1

r = 1

r = -1

The maximum value of sinθcosθis

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1

1/2

1/4

1/6

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sec x tan x

cos²x

sin²x

sec²x

45° = ______

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