Trigonometry Practice Question and Answer

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

1253 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┐ a cot ╬╕ + b cosec ╬╕= p рдФрд░ b cot ╬╕ + a cosec ╬╕ = q рд╣реИ рддреЛ p2┬а-q2_____ рдХреЗ рдмрд░рд╛рдмрд░ рд╣реИ

1244 0

  • 1

    b2 тАУ a2

    Correct
    Wrong
  • 2

    a2 тАУ b2

    Correct
    Wrong
  • 3

    b тАУ a

    Correct
    Wrong
  • 4

    a2+b2

    Correct
    Wrong
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Answer : 1. "

b2 тАУ a2

"

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

1226 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. "$$ {2\over 7}$$"

Q:

300┬░┬ардХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реИ?

1226 0

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

Q:

$${cotA+tanB}\over{cotB+tanA}$$┬ардХрд╛ рд╕рд░рд▓реАрдХреГрдд рдорд╛рди рдХреНрдпрд╛ рд╣реИ?

1225 0

  • 1
    tanAcotB
    Correct
    Wrong
  • 2
    tanBcotA
    Correct
    Wrong
  • 3
    tanAtanB
    Correct
    Wrong
  • 4
    cotAcotB
    Correct
    Wrong
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Answer : 2. "tanBcotA"

Q:

рдпрджрд┐┬а$$ {Acos^{2}╬╕+Bsin^{2}╬╕}={sin^{2}╬╕(sec^{2}╬╕+1)\over{sec^{2}╬╕-1}}$$ ┬ард╣реИ рддреЛ┬аcot╬╕=?

1219 0

  • 1
    $${\sqrt{B-2\over2-A}}$$
    Correct
    Wrong
  • 2
    $${\sqrt{B-1\over2-A}}$$
    Correct
    Wrong
  • 3
    $${\sqrt{B-1\over A-2}}$$
    Correct
    Wrong
  • 4
    $${\sqrt{2-B\over 2-A}}$$
    Correct
    Wrong
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Answer : 2. "$${\sqrt{B-1\over2-A}}$$"

Q:

рдпрджрд┐ sin A=$${6\over 7}$$, рддреЛ sec A рдХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реИ?

1206 0

  • 1
    $$ {1}\over \sqrt { 13} \ $$
    Correct
    Wrong
  • 2
    $$ {7}\over \sqrt { 13} \ $$
    Correct
    Wrong
  • 3
    $$ {6}\over \sqrt { 13} \ $$
    Correct
    Wrong
  • 4
    $$ {4}\over \sqrt { 13} \ $$
    Correct
    Wrong
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Answer : 2. "$$ {7}\over \sqrt { 13} \ $$"

Q:

рдпрджрд┐┬аtanx = cot(50+3x),┬арддреЛ┬аx┬ардХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реИ?

1204 0

  • 1
    11
    Correct
    Wrong
  • 2
    14
    Correct
    Wrong
  • 3
    10
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 3. "10"

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