ECAT Pre Engineering Mathematic MCQ Test With Answer for Chapter 15 (Inverse Trigonometric Functions)

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  A
• 
  B
• 
  C
• 
  D

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  A
• 
  B
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  C
• 
  D

sn (2sin-10.8)

• 0.56 A
• 0.69 B
• -0.16 C
• 0.96 D

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  A
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  B
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  C
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  D

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  A
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  B
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  C
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  D

The value of cos(cos-1 1/2) is

• 1/2 A
• √3/2 B
• -1/2 C
• 1/√2 D

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  A
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  B
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  C
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  D

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  A
• 
  B
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  C
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  D

• π / 3 A
• π / 4 B
• π / 6 C
• 0 D

The value of sin-1 24/25 is equal to

• csc-1 25/24 A
• sec-1 24/25 B
• 2 tan-1 4/5 C
• 2cos-1 24/25 D

The domain of the principal tan function is

• 
  A
• 
  B
• 
  C
• 
  D

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  A
• 
  B
• 
  C
• 
  D

sin (sin^-1(1/2))=

• 0 A
• 2 B
• ∞ C
• 1/2 D

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  A
• 
  B
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  C
• 
  D

The principal value of sin^-1[-√(√3) /2] is

• 5π/3 A
• -2π/3 B
• -π/3
  C
• π/3 D

• π A
• π / 2 B
• π / 3 C
• π / 4 D

Sin -1 x=

• sin(π/2-x) A
• Sin-1 (π/2-x) B
• π/2-cos-1x C
• π/2 + cos-1x D

The range of the principal sine function is

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  A
• 
  B
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  C
• 
  D

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  A
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  B
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  C
• 
  D

• x = 3 A
• x = 1/5 B
• x = 0 C
• None of these D

Sin-1(-x)=

• x A
• -x B
• -sin-1 x C
• cos-1 x D

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  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

The domain of the function y = sin x , is

• -π/2≤ x≤ π/2 A
• π/ ≤ x≤ π B
• -2π ≤ x≤ 2π C
• -1 ≤ x≤ 1 D

Cos (cos4π/3)=

• π/2 A
• π/3 B
• 2π/3 C
• -π/3 D

Cos-1(x)=

• cos x A
• x B
• tan-1(-x) C
• Sec-1 (1/x) D

Cos-1 (-x) =

• -x A
• 1/x B
• tan-1 x C
• π-cos-1 x D

Sin^-1(-x)=

• Cos^-11/x A
• - Sin^-1X B
• Cot^-1X C
• None of these D

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  A
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  B
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  C
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  D

The range of the principle cot function is

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  A
• 
  B
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  C
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  D