Trigonometry Question and Answers Practice Question and Answer

Q:

$$ \sqrt {sec^2{╬╕}+cosec^2{╬╕}}=?$$.

1126 0

  • 1
    $$ {tan^2{╬╕}}+cot^2{╬╕}$$
    Correct
    Wrong
  • 2
    $$ tan╬╕+cot╬╕$$
    Correct
    Wrong
  • 3
    $$ sin╬╕+cos╬╕$$
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "$$ tan╬╕+cot╬╕$$"

Q:

рдпрджрд┐┬а sin╬╕-cos╬╕= \({7\over13}\) рдФрд░┬а 0┬║ <╬╕<90┬░,┬ард╣реИ рддреЛ ┬аsin╬╕+cos╬╕рдХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реЛрдЧрд╛

1121 0

  • 1
    \({17\over13}\)
    Correct
    Wrong
  • 2
    \({13\over17}\)
    Correct
    Wrong
  • 3
    \({1\over13}\)
    Correct
    Wrong
  • 4
    \({1\over17}\)
    Correct
    Wrong
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Answer : 1. "\({17\over13}\)"

Q:

рдпрджрд┐┬а2sin2 ╬╕ тАУ 3 sin ╬╕ + 1 = 0, ┬а╬╕┬ардзрди рдиреНрдпреВрди рд╣реИ,┬арддреЛ┬а╬╕┬ардХреЗ рдорд╛рди рд╣реИ┬а?

1116 0

  • 1
    $$ 30^0, 90^0$$
    Correct
    Wrong
  • 2
    $$ 60^0, 55^0$$
    Correct
    Wrong
  • 3
    $$ 60^0, 45^0$$
    Correct
    Wrong
  • 4
    $$ 45^0, 55^0$$
    Correct
    Wrong
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Answer : 1. "$$ 30^0, 90^0$$"

Q:

рдпрджрд┐┬аcos3A = X, рддреЛ┬аX рдХрд╛ рдорд╛рди┬ард╣реИ?

1115 0

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

Q:

рдпрджрд┐┬а┬аsec╬╕ тАУ┬аtan╬╕ =┬а1/3 ┬ард╣реИ рддреЛ┬аsec╬╕ +┬аtan╬╕┬ардХрд╛ рдорд╛рди рд╣реЛрдЧрд╛?

1105 0

  • 1
    1
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    1/9
    Correct
    Wrong
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Answer : 3. "3 "

Q:

рдпрджрд┐┬а4tan╬╕=3┬ард╣реИ рддреЛ┬а$$ \left({4sin╬╕-2cos╬╕\over4sin╬╕+2cos╬╕}\right) $$┬ардХрд╛ рдорд╛рди рд╣реЛрдЧрд╛тАФ

1102 0

  • 1
    $$ {2\over5}$$
    Correct
    Wrong
  • 2
    $$ {1\over5}$$
    Correct
    Wrong
  • 3
    $$ {4\over5}$$
    Correct
    Wrong
  • 4
    рдЗрдирдореЗрдВ рд╕реЗ рдХреЛрдИ рдирд╣реАрдВ
    Correct
    Wrong
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Answer : 2. "$$ {1\over5}$$"

Q:

$$ {2tan53┬░\over cot37┬░} -{cot80┬░\over tan10┬░}$$ рдХрд╛ рдорд╛рди рдмрддрд╛рдЗрдП?

1101 0

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

Q:

$$ sin^2 5┬░ + sin^2 10┬░+sin^2 15┬░+.....sin^2 85┬░+sin^2 90┬░$$┬ардХреЗ рдмрд░рд╛рдмрд░ рд╣реИред

1082 0

  • 1
    $$ {17\over2}$$
    Correct
    Wrong
  • 2
    $$ {19\over2}$$
    Correct
    Wrong
  • 3
    $$ {21\over2}$$
    Correct
    Wrong
  • 4
    $$ {18\over2}$$
    Correct
    Wrong
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Answer : 2. "$$ {19\over2}$$"

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