Trigonometry - Arithmetic Aptitude Questions and Answers

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Evaluate arc cot [2cos (arc sin 0.5)]

A.

30°

B.

45°

C.

60°

D.

90°

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Solve for x in the given equation: Arc tan (2x) + arc tan (x) = π/4

A.

0.149

B.

0.281

C.

0.316

D.

0.421

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Solve for x in the equation: arc tan (x + 1) + arc tan (x – 1) = arc tan (12)

A.

1.20

B.

1.25

C.

1.34

D.

1.5

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Solve for A for the given equation cos 2A = 1 – cos 2A

A.

45, 125, 225, 315 degrees

B.

45, 125, 225, 335 degrees

C.

45, 135, 225, 315 degrees

D.

45, 150, 220, 315 degrees

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Simplify the following: [(cos A + cos B)/(sin A – sin B)] + [(sin A + sin B)/(cos A – cos B)]

A.

0

B.

1

C.

sin A

D.

cos A

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Evaluate: (2sinθcosθ-cosθ)/(1 – sin θ+ sin^2θ – cos^2θ)

A.

sin θ

B.

cos θ

C.

tan θ

D.

cot θ

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Solve for the value of A° when sin A = 3.5 x and cos A = 5.5 x

A.

32.47°

B.

33.68°

C.

34.12°

D.

35.21°

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If sin A = 2.511x, cos A = 3.06x and sin 2A = 3.39x, find the value of x?

A.

0.256

B.

0.265

C.

0.562

D.

0.625

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If conversed sin θ= 0.134, find the value of θ

A.

30°

B.

45°

C.

60°

D.

90°