Trigonometry Practice Question and Answer

Q:

If sec x + cos x = 2, then the value of sec16 x + cos16 x will be-

1217 0

  • 1
    2
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    √3
    Correct
    Wrong
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Answer : 1. "2 "

Q:

What is the simplified value of (1– sin A cos A)(sin A + cos A)?

800 1

  • 1
    $$cos^2A – sin^2A$$
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    $$sin^3A + cos^3A$$
    Correct
    Wrong
  • 4
    $$sin^2A – cos^2A$$
    Correct
    Wrong
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Answer : 3. "$$sin^3A + cos^3A$$ "

Q:

If 3 sin x + 5cosx = 5 then what is the value of (3cosx - 5sinx)

1396 0

  • 1
    0
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
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Answer : 2. "3"

Q:

If 1 + sin2 A = 3 sin A cos A, then what are the possible values of tan A?

997 0

  • 1
    1, 0
    Correct
    Wrong
  • 2
    1, 1/2
    Correct
    Wrong
  • 3
    1 , 1/3
    Correct
    Wrong
  • 4
    1, 3
    Correct
    Wrong
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Answer : 2. "1, 1/2"

Q:

Find the value of (cosA - sinA)2 + (cosA + sinA)2   -

801 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
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Answer : 3. "2"

Q:

What is the value of 300°?

688 0

  • 1
    -1/2
    Correct
    Wrong
  • 2
    $$ {-1\over{\sqrt{2}}}$$
    Correct
    Wrong
  • 3
    $${-\sqrt{3}}$$
    Correct
    Wrong
  • 4
    $${-\sqrt{3}\over 2}$$
    Correct
    Wrong
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Answer : 3. "$${-\sqrt{3}}$$"

Q:

What is the value of $${\sqrt{1-cosA\over{1+cosA}}}$$?

813 0

  • 1
    cosecA-sinA
    Correct
    Wrong
  • 2
    cosecA+cotA
    Correct
    Wrong
  • 3
    secA-cotA
    Correct
    Wrong
  • 4
    secA+cotA
    Correct
    Wrong
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Answer : 1. "cosecA-sinA"

Q:

Simplify $$ ({Sinθ\over{1+cosθ}}+{1+cosθ\over sinθ})({1\over (tanθ+cotθ)})$$

700 0

  • 1
    $$ {cos{\ θ}}$$
    Correct
    Wrong
  • 2
    $$ {2sin{\ θ}}$$
    Correct
    Wrong
  • 3
    $$ {sin{\ θ}}$$
    Correct
    Wrong
  • 4
    $$ {2cos{\ θ}}$$
    Correct
    Wrong
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Answer : 4. "$$ {2cos{\ θ}}$$"

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