Trigonometry Practice Question and Answer

Q:

यदि sin3θ=cos(20° - θ)  है तो θ का मान होगा।

1012 0

  • 1
    40°
    Correct
    Wrong
  • 2
    35°
    Correct
    Wrong
  • 3
    60°
    Correct
    Wrong
  • 4
    30°
    Correct
    Wrong
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Answer : 2. "35°"

Q:

यदि x+ y=90°,  है तो $$ {\sqrt{cosx.cosecy-cosx.siny}}$$ का मान क्या होगा?

792 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"

Q:

यदि tan A=n tan B  और Sin A= m Sin B, है तो Cos2A का मान होगा।

884 0

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

Q:

sin222° + Sin268°+ Cot2 30° का मान होगा।

810 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:

दिये गये चित्र में BC=15 cm  , Sin B=4/5  है तो AB का मान होगा।

1029 0

  • 1
    25 सेमी
    Correct
    Wrong
  • 2
    20 सेमी
    Correct
    Wrong
  • 3
    5 सेमी
    Correct
    Wrong
  • 4
    4 सेमी
    Correct
    Wrong
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Answer : 1. "25 सेमी"

Q:

यदि $$ {1+sinθ\over {1-sinθ}}={p^{2}\over{q^{2}}}$$,  है तो sec θ का मान होगा।

874 0

  • 1
    $$ {2p^{2}{q^{2}}\over {p^{2}+{q^{2}}}}$$
    Correct
    Wrong
  • 2
    $${1\over 2}\left({q\over p}+{p\over q} \right)$$
    Correct
    Wrong
  • 3
    $$ {1\over {p^{2}}}+{1\over {q^{2}}}$$
    Correct
    Wrong
  • 4
    $$ {p^{2}q^{2}}\over{p^{2}+q^{2}}$$
    Correct
    Wrong
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Answer : 2. "$${1\over 2}\left({q\over p}+{p\over q} \right)$$"

Q:

$$ {25 cosec^{2}θ +25sin^{2}θ}$$ का न्यूनतम मान होगा?

906 0

  • 1
    25
    Correct
    Wrong
  • 2
    50
    Correct
    Wrong
  • 3
    55
    Correct
    Wrong
  • 4
    20
    Correct
    Wrong
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Answer : 2. "50"

Q:

$${cos^2A\over {1+sinA}}$$ का मान क्या होगा?

732 0

  • 1
    1+sinA
    Correct
    Wrong
  • 2
    1-sinA
    Correct
    Wrong
  • 3
    1+secA
    Correct
    Wrong
  • 4
    1-secA
    Correct
    Wrong
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Answer : 2. "1-sinA"

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