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  $$ {Cos^4θ +Sin^4θ}={2 \over3} $$ तो का मान $$ {Cos^2θ -Sin^2θ+1}$$ क्या होगा?

2635 0

  • 1
    $$ {13 \over15} $$
    Correct
    Wrong
  • 2
    $$ {14\over15} $$
    Correct
    Wrong
  • 3
    $$ {15 \over14} $$
    Correct
    Wrong
  • 4
    $$ {15 \over13} $$
    Correct
    Wrong
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Answer : 4. "$$ {15 \over13} $$"

Q:

यदि cos2α + cos2β = 2, तो tan3 α + sin5 β का मान है ? 

2603 0

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

Q:

यदि $$ sin θ ={20 \over 29}$$,  है  तो sec θ sin θ का मान क्या है?

2497 2

  • 1
    $$ {20 \over 21}$$
    Correct
    Wrong
  • 2
    $$ {29 \over 20}$$
    Correct
    Wrong
  • 3
    $$ {21 \over 20}$$
    Correct
    Wrong
  • 4
    $$ {21 \over 29}$$
    Correct
    Wrong
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Answer : 1. "$$ {20 \over 21}$$"

Q:

रिक्त स्थान भरें:

Sin A = ____ × (Cos A) 

2459 0

  • 1
    Sin A
    Correct
    Wrong
  • 2
    Tan A
    Correct
    Wrong
  • 3
    Cot A
    Correct
    Wrong
  • 4
    Cosec A
    Correct
    Wrong
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Answer : 2. "Tan A "

Q:

दिए गए समीकरण को हल कीजिए।

$$ {{cot \ 30°}\over {1+sin\ 45°}}+{{1+sin\ 45°}\over cot \ 30°}=?$$

2252 0

  • 1
    $$ {5\sqrt{3}}-{6\sqrt{6}}\over 6$$
    Correct
    Wrong
  • 2
    $$ {3-2\sqrt{3}}$$
    Correct
    Wrong
  • 3
    $$ {14\sqrt{3}}-{5\sqrt{6}}\over 6$$
    Correct
    Wrong
  • 4
    $$ {6\sqrt{6}}-{5\sqrt{3}}\over 6$$
    Correct
    Wrong
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Answer : 3. "$$ {14\sqrt{3}}-{5\sqrt{6}}\over 6$$"

Q:

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

1942 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:

यदि  sinθ + cosecθ = 2 है तो $$ sin^9 θ +cosec^9θ $$  का मान है।

1785 0

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

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