Trigonometry Practice Question and Answer
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Q: $$ cos {20^o} cos {40^o}cos {60^o}cos {80^o}$$ का मान है:
860 05e81724bd063766356920d18
5e81724bd063766356920d18- 1$$ {1\over 15}$$false
- 2$$ {1\over 16}$$true
- 3$$ {1\over 12}$$false
- 4None of thesefalse
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Answer : 2. "$$ {1\over 16}$$"
Q: यदि tanθ=1/5 है तो Cosec2θ का मान ज्ञात कीजिये?
857 05edf1d8e71a5bd73c30de4ba
5edf1d8e71a5bd73c30de4ba- 15false
- 2$$ \sqrt{5}$$false
- 3$$ \sqrt{6}$$false
- 46true
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Answer : 4. "6"
Q: यदि Tan4x – Tan2x=1 है तो Sin4x + Sin2x का मान ज्ञात कीजिए।
849 05ffc33a923210f22f33035f6
5ffc33a923210f22f33035f6- 11true
- 2$$ {1\over 2}$$false
- 33false
- 4$$ {1\over 5}$$false
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Answer : 1. "1"
Q: $$ {3tan^{2}30°}-{4\over 3}{sin^{2}60°}- {1\over2}{cosec^{2}45°}+{4\over3}{sin^{2}90°=?}$$.
848 05f76cd32e487e60dced9212c
5f76cd32e487e60dced9212c- 1$$ {2\over3}$$false
- 2$$ {1\over3}$$true
- 3$$ {4\over3}$$false
- 4$$ {5\over4}$$false
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Answer : 2. "$$ {1\over3}$$"
Q: यदि 4sin2 θ – 1 = 0 और कोण θ<900 से कम है । तो cos2 θ + tan2 θ का मान क्या होगा ?
(माना 00 < θ < 900 )
844 05dd38448a46476101fbcb535
5dd38448a46476101fbcb535- 1$$ 13\over 12$$true
- 2$$ 12\over 11$$false
- 3$$ 11\over 9$$false
- 4$$ 17\over 15$$false
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Answer : 1. "$$ 13\over 12$$"
Q: यदि $$ sin(θ+30^0)= {3\over \sqrt { 12} } $$ है तो cos2θ का मान ज्ञात करें ?
840 05dd38201bfcbc45cddeddb4d
5dd38201bfcbc45cddeddb4d- 1$$ {1\over 4} $$false
- 2$$ {3\over 4} $$true
- 3$${\sqrt { 3} \ }\over 2 $$false
- 4$$ {1\over 2} $$false
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Answer : 2. "$$ {3\over 4} $$"
Q: यदि cosec θ=1.25 है तब $$ {4 \ tanθ-5 \ cosθ + 1\over secθ+ 4cotθ-1}=?$$ होगा?
828 060531738528a962d2e428f1e
60531738528a962d2e428f1e- 1$$ {9\over 10}$$false
- 22false
- 3$$ {10\over 11}$$true
- 4$$ {1\over 2}$$false
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Answer : 3. "$$ {10\over 11}$$"
Q: यदि $$ {tan3A=cot{(2A+40)}}$$ है तो $$ {tan^2{3A}}+{cot^{4}3A}$$.का मान है।
828 05f2e6d142b354b2550073a8a
5f2e6d142b354b2550073a8a- 1$$ {27\over 3}$$false
- 2$$ {28\over 3}$$true
- 3$$ {2\over 3}$$false
- 40false
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Answer : 2. "$$ {28\over 3}$$"
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