Trigonometry Question and Answers Practice Question and Answer
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Q: If Tan4x – Tan2x=1 then the value of Sin4x + Sin2x is__
1417 05ffc33a923210f22f33035f6
5ffc33a923210f22f33035f6- 11true
- 2$$ {1\over 2}$$false
- 33false
- 4$$ {1\over 5}$$false
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Answer : 1. "1"
Q: If a(tanθ+cotθ)=1, sinθ+cosθ=b and 0°<θ<90°, then the relation between a and b.
1416 05f2e3de179b9e641a764661b
5f2e3de179b9e641a764661b- 1$$ {2a={b^2}}+1$$false
- 2$$ {b^2=2({a-1}})$$false
- 3$$ {2a={b^2-1}}$$true
- 4$$ {b^2=2({a+1}})$$false
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Answer : 3. "$$ {2a={b^2-1}}$$"
Q: If 0 ≤ θ ≤ 900 and 4cos2θ - $$4{\sqrt { 3} \ }cosθ$$ + 3 = 0, then the value of θ is :
1413 05dd382c5a46476101fbca823
5dd382c5a46476101fbca823- 1$$30^0$$true
- 2$$90^0$$false
- 3$$45^0$$false
- 4$$60^0$$false
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Answer : 1. "$$30^0$$"
Q: $$ {tan7°tan23°tan60°tan67°tan83°}$$ is equal to-
1389 05efeafe79bfe193cd14b75c5
5efeafe79bfe193cd14b75c5- 10false
- 2$$ \sqrt{3}$$true
- 3$$ 1\over \sqrt{3}$$false
- 4None of thesefalse
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Answer : 2. "$$ \sqrt{3}$$"
Q: If $$ {secθ+tanθ\over secθ - tanθ} $$= $$ 2{51\over 79} $$ sinθ then the value of sin θ is :
1389 05def36da6d799a05c00a41fe
5def36da6d799a05c00a41fe- 1$$ {91\over144}$$false
- 2$$ {39\over72}$$false
- 3$$ {65\over144}$$true
- 4$$ {35\over72}$$false
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Answer : 3. "$$ {65\over144}$$"
Q: Find the minimum value of $$ {25 cosec^{2}θ +25sin^{2}θ}$$
1388 05f40dcdcb8958f14fa2b34f6
5f40dcdcb8958f14fa2b34f6- 125false
- 250true
- 355false
- 420false
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Answer : 2. "50"
Q: (secA – 1)/(secA + 1) is equal to?
1382 05ecf342aa7365b2f4ce1cfb0
5ecf342aa7365b2f4ce1cfb0- 1(1 – sinA)/(1 + sinA)false
- 2(1 – cosA)/(1 + cosA)true
- 3(1 + cosA)/(1 – cosA)false
- 4(1 + sinA)/(1 – sinA)false
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Answer : 2. "(1 – cosA)/(1 + cosA)"
Q: If $$ sin(θ+30^0)= {3\over \sqrt { 12} } $$ then find cos2θ :
1379 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. "$$ {3\over 4} $$"
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