Trigonometry Practice Question and Answer

Q:

рдпрджрд┐┬а$$ sec╬╕-tan╬╕={1\over\sqrt{3}}$$,┬а┬ард╣реИ рддреЛ┬аsec╬╕.tan╬╕┬ардХрд╛ рдорд╛рди рд╣реЛрдЧрд╛?

1421 0

  • 1
    $$ {4\over\sqrt{3}}$$
    Correct
    Wrong
  • 2
    $$ {2\over\sqrt{3}}$$
    Correct
    Wrong
  • 3
    $$ {2\over3}$$
    Correct
    Wrong
  • 4
    $$ {1\over\sqrt{3}}$$
    Correct
    Wrong
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Answer : 3. "$$ {2\over3}$$ "

Q:

sin222┬░┬а+ Sin268┬░+ Cot2 30┬░┬ардХрд╛ рдорд╛рди рд╣реЛрдЧрд╛ред

1416 0

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

Q:

$$ {3sin60┬░-4sin^{3}60┬░=?}$$.

1400 0

  • 1
    $$ {2\sqrt{3}}$$
    Correct
    Wrong
  • 2
    $$ {4\sqrt{3}}$$
    Correct
    Wrong
  • 3
    0
    Correct
    Wrong
  • 4
    50
    Correct
    Wrong
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Answer : 3. "0"

Q:

рдпрджрд┐┬а$$ {tan\ ╬╕={a\over b}}$$ ┬ард╣реИ рддреЛ┬а$$ {a\sin╬╕+b\cos╬╕\over{a\sin╬╕-b\cos╬╕}}$$ ┬а┬ардХрд╛ рдорд╛рди рд╣реЛрдЧрд╛тАФ

1400 0

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

Q:

рдпрджрд┐┬аx+ y=90┬░, ┬ард╣реИ рддреЛ┬а$$ {\sqrt{cosx.cosecy-cosx.siny}}$$┬ардХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реЛрдЧрд╛?

1395 0

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

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Answer : 3. "1"

Q:

╬ФPQR, Q┬ардкрд░ рдПрдХ рд╕рдордХреЛрдг рд╣реИред рдпрджрд┐┬аcos P = 3/5┬ард╣реИ,┬арддреЛ┬аcos R┬ардХрд╛ рдорд╛рди рдЬреНрдЮрд╛рдд рдХрд░реЗрдВ?

1369 0

  • 1
    $$ {3\over4}$$
    Correct
    Wrong
  • 2
    $$ {5\over3}$$
    Correct
    Wrong
  • 3
    $$ {4\over5}$$
    Correct
    Wrong
  • 4
    $$ {4\over3}$$
    Correct
    Wrong
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Answer : 3. "$$ {4\over5}$$"

Q:

рдпрджрд┐┬а5sin╬╕┬атАУ 4cos╬╕=0, 0┬░╦В╬╕╦В90┬░,┬ард╣реИ рддреЛ┬а┬а$$ {5\sin╬╕-2\cos╬╕}\over {5\sin╬╕+3\cos╬╕}$$┬ардХрд╛ рдорд╛рди рд╣реЛрдЧрд╛тАФ

1368 0

  • 1
    $$ {3\over 8}$$
    Correct
    Wrong
  • 2
    $$ {2\over 7}$$
    Correct
    Wrong
  • 3
    $$ {5\over 7}$$
    Correct
    Wrong
  • 4
    $$ {3\over 5}$$
    Correct
    Wrong
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Answer : 2. "$$ {2\over 7}$$"

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