Trigonometry Practice Question and Answer

Q:

ΔPQR, Q पर एक समकोण है। यदि cos P = 3/5 है, तो cos R का मान ज्ञात करें?

807 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:

यदि Cos A + Cos2 A = 1 है तो Sin2 A + Sin4 A=?

806 0

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

Q:

त्रिभुज का एक कोण 55° है। यदि अन्य दो  कोण 9:16 के अनुपात में है तो कोण ज्ञात कीजिए।

797 1

  • 1
    65° और 115°
    Correct
    Wrong
  • 2
    90° और 160°
    Correct
    Wrong
  • 3
    55°और 165°
    Correct
    Wrong
  • 4
    45° और 80°
    Correct
    Wrong
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Answer : 4. "45° और 80°"

Q:

हल करें। $$ {sin \ θ\over 1+cos\ θ}+{1+cosθ\over sin\ θ}=?$$

716 0

  • 1
    $$ {tan \ θ} $$
    Correct
    Wrong
  • 2
    $$ {cot\ θ}$$
    Correct
    Wrong
  • 3
    $$ {2\over sinθ}$$
    Correct
    Wrong
  • 4
    $$ {2\over cosθ}$$
    Correct
    Wrong
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Answer : 3. "$$ {2\over sinθ}$$"

Q:

यदि cos θ + sin θ =m, sec θ + cosec θ =n है तो m/n कितना है।

913 0

  • 1
    1
    Correct
    Wrong
  • 2
    sin θ cos θ
    Correct
    Wrong
  • 3
    sec θ cosec θ
    Correct
    Wrong
  • 4
    cot θ tan θ
    Correct
    Wrong
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Answer : 2. "sin θ cos θ"

Q:

यदि $$ {sin\ {θ}}={1\over {\sqrt{2}}}$$  है तब  (tanθ+cosθ का मान ज्ञात कीजिये।

710 1

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

Q:

यदि tanx = cot(50+3x), तो x का मान क्या है?

694 0

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

Q:

यदि $$ {tan\ θ={a\over b}}$$  है तो $$ {a\sinθ+b\cosθ\over{a\sinθ-b\cosθ}}$$   का मान होगा—

731 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. "$$ {a^{2}+b^{2}\over {a^{2}-b^{2}}}$$"

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