Trigonometry Practice Question and Answer

Q:

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

1271 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:

If cos3A = X, then value of X?

1270 0

  • 1
    4cos3A + 3cosA
    Correct
    Wrong
  • 2
    3cosA – 4cos3A
    Correct
    Wrong
  • 3
    cosA + 4cos3A
    Correct
    Wrong
  • 4
    4cos3A – 3cosA
    Correct
    Wrong
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Answer : 4. "4cos3A – 3cosA"

Q:

If and then what is the value of cot (A + B)?

1253 0

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

Q:

What is the value of is:

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

Q:

If x cos2300. sin600= then the value of x : 

1248 0

  • 1
    Correct
    Wrong
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    Correct
    Wrong
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    Correct
    Wrong
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    Correct
    Wrong
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Answer : 2. ""

Q:

Find the value of .

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    Correct
    Wrong
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    Correct
    Wrong
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    Correct
    Wrong
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    Correct
    Wrong
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Answer : 2. ""

Q:

If sin3θ=cos(20° - θ) then find out  the value of θ.

1192 0

  • 1
    40°
    Correct
    Wrong
  • 2
    35°
    Correct
    Wrong
  • 3
    60°
    Correct
    Wrong
  • 4
    30°
    Correct
    Wrong
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Answer : 2. "35°"

Q:

In ΔABC θ is an acute angle and tanθ is equal to three times of cotθ. Find the value of θθθ.

1191 0

  • 1
    Correct
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    Correct
    Wrong
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    Correct
    Wrong
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    Correct
    Wrong
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Answer : 1. ""

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