Trigonometry Question and Answers Practice Question and Answer

Q:

sin2 10 + sin2 20 + sin2 30 + ....... + sin2 80. का मान ज्ञात करों?

5354 0

  • 1
    3
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    0
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 2. "4"

Q:

यदि $$ {2sinθ-cosθ\over cosθ+sinθ}=1 $$  है तो Cotθ का मान होगा।

1128 0

  • 1
    $$ {1\over4}$$
    Correct
    Wrong
  • 2
    $$ {1\over2}$$
    Correct
    Wrong
  • 3
    $$ {1\over3}$$
    Correct
    Wrong
  • 4
    $$ {2\over3}$$
    Correct
    Wrong
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Answer : 2. "$$ {1\over2}$$"

Q:

यदि 2sin2θ–5sinθcosθ+7cos2θ=1 है तो tanθ का सम्भावित मान है।

1578 0

  • 1
    2, 5
    Correct
    Wrong
  • 2
    1, 3
    Correct
    Wrong
  • 3
    2, $$ {5\over2}$$
    Correct
    Wrong
  • 4
    2, 3
    Correct
    Wrong
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Answer : 4. "2, 3"

Q:

यदि 3 tan θ - 4 = 0 और 180° < θ < 270° तो cosec θ = _______

910 0

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

Q:

यदि tanθ=1/5  है तो Cosec2θ का मान ज्ञात कीजिये?

850 0

  • 1
    5
    Correct
    Wrong
  • 2
    $$ \sqrt{5}$$
    Correct
    Wrong
  • 3
    $$ \sqrt{6}$$
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 4. "6"

Q:

यदि cos3A = X, तो X का मान है?

1117 0

  • 1
    4cos3A + 3cosA
    Correct
    Wrong
  • 2
    3cosA – 4cos3A
    Correct
    Wrong
  • 3
    cosA + 4cos3A
    Correct
    Wrong
  • 4
    4cos3A – 3cosA
    Correct
    Wrong
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Answer : 4. "4cos3A – 3cosA"

Q:

(secA – 1)/(secA + 1) के बराबर है।

907 0

  • 1
    (1 – sinA)/(1 + sinA)
    Correct
    Wrong
  • 2
    (1 – cosA)/(1 + cosA)
    Correct
    Wrong
  • 3
    (1 + cosA)/(1 – cosA)
    Correct
    Wrong
  • 4
    (1 + sinA)/(1 – sinA)
    Correct
    Wrong
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Answer : 2. "(1 – cosA)/(1 + cosA)"

Q:

यदि x tan45° cos30° = sin30° cos45° , तो किसके बराबर है- 

1150 0

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

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