Trigonometry Question and Answers Practice Question and Answer
8 4 Q:
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5d931eb2c263b979273f369a 4 Q:
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Q: Find the value of sin2 10 + sin2 20 + sin2 30 + ....... + sin2 80.
5372 05ef04c2881a47f2e7ae44392
5ef04c2881a47f2e7ae44392- 13false
- 24true
- 30false
- 41false
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Answer : 2. "4"
Q: $$ {Cos^4θ +Sin^4θ}={2 \over3} $$ then the value of $$ {Cos^2θ -Sin^2θ+1}$$?
2664 05e5cac92ceeecd2b761887bd
5e5cac92ceeecd2b761887bd- 1$$ {13 \over15} $$false
- 2$$ {14\over15} $$false
- 3$$ {15 \over14} $$false
- 4$$ {15 \over13} $$true
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Answer : 4. "$$ {15 \over13} $$"
Q: If cos2α + cos2β = 2, then the value of tan3 α + sin5 β is :
2656 05df1f6610183ea49d62ce47e
5df1f6610183ea49d62ce47e- 1– 1false
- 20true
- 31false
- 4$$ {1\over √3 } $$false
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Answer : 2. "0"
Q: If $$ sin θ ={20 \over 29}$$, then what is the value of sec θ sin θ?
2522 25d931eb2c263b979273f369a
5d931eb2c263b979273f369a- 1$$ {20 \over 21}$$true
- 2$$ {29 \over 20}$$false
- 3$$ {21 \over 20}$$false
- 4$$ {21 \over 29}$$false
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Answer : 1. "$$ {20 \over 21}$$"
Q: Fill in the blanks:
Sin A = ____ × (Cos A)
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5eb50a96ffc62d0a81dd3446Sin A = ____ × (Cos A)
- 1Sin Afalse
- 2Tan Atrue
- 3Cot Afalse
- 4Cosec Afalse
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Answer : 2. "Tan A "
Q: Solve the given equation.
$$ {{cot \ 30°}\over {1+sin\ 45°}}+{{1+sin\ 45°}\over cot \ 30°}=?$$
2276 05f96bdd6d8201a50c263815f
5f96bdd6d8201a50c263815f$$ {{cot \ 30°}\over {1+sin\ 45°}}+{{1+sin\ 45°}\over cot \ 30°}=?$$
- 1$$ {5\sqrt{3}}-{6\sqrt{6}}\over 6$$false
- 2$$ {3-2\sqrt{3}}$$false
- 3$$ {14\sqrt{3}}-{5\sqrt{6}}\over 6$$true
- 4$$ {6\sqrt{6}}-{5\sqrt{3}}\over 6$$false
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Answer : 3. "$$ {14\sqrt{3}}-{5\sqrt{6}}\over 6$$"
Q: The minimum value of 16 tan2 θ + 25cot2 θ is
1971 0601a5386552e5f41f7b07e4f
601a5386552e5f41f7b07e4f- 15false
- 24false
- 330false
- 440true
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Answer : 4. "40"
Q: If sinθ + cosecθ = 2, then the value of $$ sin^9 θ +cosec^9θ $$ is –
1805 05e7d9f2e83fe6161107a7352
5e7d9f2e83fe6161107a7352- 14false
- 20false
- 31false
- 42true
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Answer : 4. "2"
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