Trigonometry Question and Answers Practice Question and Answer

Q:

△ABC is right-angle triangle at B and tan A = $$3\over 4$$, then sin A + sin B + sin C will be equal to:

490 0

  • 1
    $$2{4\over 5}$$
    Correct
    Wrong
  • 2
    $$2{2\over 5}$$
    Correct
    Wrong
  • 3
    $$3{1\over 5}$$
    Correct
    Wrong
  • 4
    $$1{1\over 5}$$
    Correct
    Wrong
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Answer : 2. "$$2{2\over 5}$$"

Q:

Find the value of tan 270 tan340 + tan340 tan29+ tan290 tan270.

483 0

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

Q:

$$ secA(secA+tanA)(1-sinA)\over (cosec^2A-1)sin^2A$$ is equal to:

481 0

  • 1
    cotA
    Correct
    Wrong
  • 2
    cosA
    Correct
    Wrong
  • 3

       sec2A

    Correct
    Wrong
  • 4

      cos2A

    Correct
    Wrong
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Answer : 3. "

   sec2A

"

Q:

If 4sin2θ=3(1+cosθ),00<θ<900, then what is the value of (2tanθ+4sinθ-secθ)?

478 0

  • 1
    $$3\sqrt {15}-4$$
    Correct
    Wrong
  • 2
    $$15\sqrt {3}-4$$
    Correct
    Wrong
  • 3
    $$15\sqrt {3}+4$$
    Correct
    Wrong
  • 4
    $$4\sqrt {15}-3$$
    Correct
    Wrong
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Answer : 1. "$$3\sqrt {15}-4$$"

Q:

cosA(sec A – cosA)(cotA+tanA)=?

478 0

  • 1
    tan A
    Correct
    Wrong
  • 2
    cot A
    Correct
    Wrong
  • 3
    sec A
    Correct
    Wrong
  • 4
    sin A
    Correct
    Wrong
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Answer : 1. "tan A"

Q:

 if $$tan(A+B)=\sqrt { 3} \ $$ and $$ tan(A-B)= {1\over \sqrt { 3} \   }; 0^0<(A+B)<90^0;A>B, $$ then the value of A and B are

470 0

  • 1
    45° and 15°
    Correct
    Wrong
  • 2
    15° and 45°
    Correct
    Wrong
  • 3
    30° and 30°
    Correct
    Wrong
  • 4
    60° and 30°
    Correct
    Wrong
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Answer : 1. "45° and 15° "

Q:

Find the exact value of cos 1200.

469 0

  • 1
    1
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    -0.5
    Correct
    Wrong
  • 4
    0.5
    Correct
    Wrong
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Answer : 3. "-0.5"

Q:

What is the value of cosecA(1 − cosA)(cosecA + cotA)?

467 0

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

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