Trigonometry Practice Question and Answer

Q:

16 tan2 θ + 25cot2 θ का मान न्यूनतम मान होगा—

1988 0

  • 1
    5
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    30
    Correct
    Wrong
  • 4
    40
    Correct
    Wrong
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Answer : 4. "40"

Q:

ΔABC में, θ एक न्यूनकोण है और tanθ, cotθ का तीगुना है । $$ {sin^{2}θ+cosec^{2}θ-{1\over 2}cot^{2}θ}$$ का मान ज्ञात कीजिए।

950 0

  • 1
    $$ {23\over 12}$$
    Correct
    Wrong
  • 2
    $$ {23\over 9}$$
    Correct
    Wrong
  • 3
    $$ {23\over 11}$$
    Correct
    Wrong
  • 4
    $$ {23\over 8}$$
    Correct
    Wrong
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Answer : 1. "$$ {23\over 12}$$"

Q:

यदि 5sinθ – 4cosθ=0, 0°˂θ˂90°, है तो  $$ {5\sinθ-2\cosθ}\over {5\sinθ+3\cosθ}$$ का मान होगा—

805 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:

$$ {(cos {\ 9°}+sin{\ 81°}})({sec {\ {9°}+cosec{\ 81°}}})\over{sin{\ 56°}sec{\ 34° }}+ {cos{\ 25°}cosec{\ 65°}}$$ का मान है।

794 0

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

Q:

यदि Tan4x – Tan2x=1  है तो Sin4x + Sin2x का मान ज्ञात कीजिए।

874 0

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

Q:

समीकरण  $$ {{ATan62°Sec 28°Cot 38°}\over {Cosec62°Tan11°}}=1$$ बनाने के लिए A के लिए निम्नलिखित में से कौन सा मूल्य सूट करता है?

772 0

  • 1
    $$ {{Tan38°Tan79°}\over {Tan 28°}}$$
    Correct
    Wrong
  • 2
    $$ {{Tan28°Tan38°}\over {Tan 79°}}$$
    Correct
    Wrong
  • 3
    $$ {{Tan38°}\over {Tan 79°Tan28°}}$$
    Correct
    Wrong
  • 4
    $$ {{Tan28° Tan 79°}\over { Tan38°}}$$
    Correct
    Wrong
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Answer : 2. "$$ {{Tan28°Tan38°}\over {Tan 79°}}$$"

Q:

यदि A और B न्यून कोण है और Sec A =3; Cot B=4, है तो $$ {Cosec^{2}A}+Sin^{2}B\over {Cot^{2}A+Sec^{2}B}$$  का मान होगा 

1043 0

  • 1
    2
    Correct
    Wrong
  • 2
    $$ {25\over 261}$$
    Correct
    Wrong
  • 3
    $$ {322\over 323}$$
    Correct
    Wrong
  • 4
    $$ {1\over 261}$$
    Correct
    Wrong
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Answer : 3. "$$ {322\over 323}$$"

Q:

यदि  sinθ-cosθ= \({7\over13}\) और  0º <θ<90°, है तो  sinθ+cosθका मान क्या होगा

1168 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. "\({17\over13}\)"

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