Trigonometry Question and Answers Practice Question and Answer

Q:

рдпрджрд┐ 4sin2╬╕=3(1+cos╬╕),00<╬╕<900, рд╣реЛ рддреЛ (2tan╬╕+4sin╬╕-sec╬╕)┬ардХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реИ?

801 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:

$$\left({sin37^0cos53^0+cos37^0sin^0} \right)-\left({4cos^237^0-7+4cos^253^0\over tan^247^0+4-cosec^243^0} is \right)$$ рдХрд╛ рдорд╛рди рд╣реИ

779 0

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

Q:

$${cos╬╕+sin^6╬╕+3sin^2╬╕ \ cos^2╬╕}\over cosec╬╕sec╬╕(sin╬╕+cos╬╕-1)(sin╬╕+cos╬╕+1) $$рдХрд╛ рдорд╛рди

774 0

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

Q:

рдпрджрд┐ $${sec╬╕={a\over b},bтЙа0,}$$ рддреЛ ┬а

┬а$${{1-tan^2╬╕}\over 2-sin^2╬╕}=?$$ ┬а

767 0

  • 1
    $${b^2(2b^2-a^2)}\over {a^2(a^2+b^2)}$$
    Correct
    Wrong
  • 2
    $${a^2(2b^2-a^2)}\over {b^2(a^2+b^2)}$$
    Correct
    Wrong
  • 3
    $${a^2(2b^2+a^2)}\over {b^2(a^2+b^2)}$$
    Correct
    Wrong
  • 4
    $${a^2(2b^2+a^2)}\over {b^2(a^2-b^2)}$$
    Correct
    Wrong
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Answer : 2. "$${a^2(2b^2-a^2)}\over {b^2(a^2+b^2)}$$"

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Answer : 1. "4"

Q:

$$sin╬╕[(1-tan╬╕)tan╬╕+sec^2╬╕]\over (1-sin╬╕)tan╬╕(1+tan╬╕)(sec╬╕+tan╬╕)$$ рдЗрд╕рдХреЗ рдмрд░рд╛рдмрд░ рд╣реИ:

753 0

  • 1
    cosec╬╕sec╬╕
    Correct
    Wrong
  • 2
    -1
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    sin╬╕cos╬╕
    Correct
    Wrong
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Answer : 3. "1"

Q:

рдпрджрд┐ 3sin2╬╕ тАУ cos╬╕-1=0, 00< ╬╕<900 рд╣реИ, рддреЛ cot ╬╕ + cosec ╬╕┬ардХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реИ?

722 0

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

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