Trigonometry Practice Question and Answer
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5ddfc7989c6026766e6b2d74 4 Q:
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Q: $$ sin^2 5° + sin^2 10°+sin^2 15°+.....sin^2 85°+sin^2 90°$$ के बराबर है।
1087 05e7d9ed3964aff79eb57fa01
5e7d9ed3964aff79eb57fa01- 1$$ {17\over2}$$false
- 2$$ {19\over2}$$true
- 3$$ {21\over2}$$false
- 4$$ {18\over2}$$false
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Answer : 2. "$$ {19\over2}$$"
Q: यदि $$ {Cos^4θ +Sin^4θ}={2 \over3} $$ तो का मान $$ {Cos^2θ -Sin^2θ+1}$$ क्या होगा?
2644 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: यदि 0 ≤ θ ≤ 900 and 4cos2θ - $$4{\sqrt { 3} \ }cosθ$$ + 3 = 0, है, तो का मान θ होगा?
1016 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: यदि cos θ = $$ {1\over \sqrt{10} } $$ है, tan θ तो बराबर है ?
1560 05ddfc7989c6026766e6b2d74
5ddfc7989c6026766e6b2d74- 1$$ {1\over \sqrt{3} } $$false
- 2$$ {1\over 3 } $$false
- 3$$ {\sqrt{3} } $$false
- 43true
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Answer : 4. " 3"
Q: यदि cos2α + cos2β = 2, तो tan3 α + sin5 β का मान है ?
2623 05df1f6610183ea49d62ce47e
5df1f6610183ea49d62ce47e- 1– 1false
- 20true
- 31false
- 4$$ {1\over √3 } $$false
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Answer : 2. "0"
Q: यदि $$ {secθ+tanθ\over secθ - tanθ} $$= $$ 2{51\over 79} $$ sinθ तो sin θ का मान है ?
909 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:
1201 05d70e14bd8eebc768d116cb7
5d70e14bd8eebc768d116cb7- 10false
- 21true
- 3-1false
- 42false
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Answer : 2. "1"
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. "$$ {3\over 4} $$"
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