Trigonometry Question and Answers Practice Question and Answer
8 4 Q:
5f06dd933f7f07047795e991 Answer : 2. "$$ tanθ+cotθ$$"
4 4 Q:
5dd383adbfcbc45cddedf30c 4 Q:
5ecf38f579d67a247e48737f 4 Q:
5eb4ece5336570304e19867b 4 Q:
5efeaf90d4461c5b47dceb30 4 Q:
5dae9a217f47a948b61044cd 4 Q:
5e7d9ed3964aff79eb57fa01
Q: $$ \sqrt {sec^2{θ}+cosec^2{θ}}=?$$
1126 05f06dd933f7f07047795e991
5f06dd933f7f07047795e991- 1$$ {tan^2{θ}}+cot^2{θ}$$false
- 2$$ tanθ+cotθ$$true
- 3$$ sinθ+cosθ$$false
- 4None of thesefalse
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Answer : 2. "$$ tanθ+cotθ$$"
Explanation :
$$ \sqrt {sec^2{θ}+cosec^2{θ}}$$
We know that
$$ {1+tan^2{θ}}={sec^2θ}$$
$$ {1+cot^2{θ}}={cosec^2{θ}}$$
$$ \sqrt {1+tan^2{θ}+1+cot^2{θ}}$$
Q: If sinθ-cosθ= \({7\over13}\) and 0º <θ<90°, then the value of Sinθ+Cosθ is 1121 05d1ef7e2c068c021a4048f20
5d1ef7e2c068c021a4048f20- 1\({17\over13}\)true
- 2\({13\over17}\)false
- 3\({1\over13}\)false
- 4\({1\over17}\)false
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Answer : 1. "\({17\over13}\)"
Q: If 2sin2 θ – 3 sin θ + 1 = 0, θ being positive angle, then the values of θ are :
1116 05dd383adbfcbc45cddedf30c
5dd383adbfcbc45cddedf30c- 1$$ 30^0, 90^0$$true
- 2$$ 60^0, 55^0$$false
- 3$$ 60^0, 45^0$$false
- 4$$ 45^0, 55^0$$false
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Answer : 1. "$$ 30^0, 90^0$$"
Q: If cos3A = X, then value of X?
1115 05ecf38f579d67a247e48737f
5ecf38f579d67a247e48737f- 14cos3A + 3cosAfalse
- 23cosA – 4cos3Afalse
- 3cosA + 4cos3Afalse
- 44cos3A – 3cosAtrue
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Answer : 4. "4cos3A – 3cosA"
Q: If secθ – tanθ = 1/3 what is secθ + tanθ?
1105 05eb4ece5336570304e19867b
5eb4ece5336570304e19867b- 11false
- 29false
- 33true
- 41/9false
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Answer : 3. "3 "
Q: If 4tanθ=3,the value of $$ \left({4sinθ-2cosθ\over4sinθ+2cosθ}\right) $$ is:-
1102 05efeaf90d4461c5b47dceb30
5efeaf90d4461c5b47dceb30- 1$$ {2\over5}$$false
- 2$$ {1\over5}$$true
- 3$$ {4\over5}$$false
- 4None of thesefalse
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Answer : 2. "$$ {1\over5}$$"
Q: What is the value of $$ {2tan53°\over cot37°} -{cot80°\over tan10°}$$ is:
1101 05dae9a217f47a948b61044cd
5dae9a217f47a948b61044cd- 13false
- 22false
- 31true
- 40false
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Answer : 3. "1"
Q: $$ sin^2 5° + sin^2 10°+sin^2 15°+.....sin^2 85°+sin^2 90°$$ is equal to
1082 05e7d9ed3964aff79eb57fa01
5e7d9ed3964aff79eb57fa01- 1$$ {17\over2}$$false
- 2$$ {19\over2}$$true
- 3$$ {21\over2}$$false
- 4$$ {18\over2}$$false
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Answer : 2. "$$ {19\over2}$$"
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