
ஜூலை மாதந்திர தேர்வு ஒரு மதிப்பெண் வினா
Authored by Karthik T
Mathematics
11th Grade
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
COS 1º+COS 2º+COS 3º+.......+COS179º=
0
1
-1
89
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1/COS 80º - √3 /SIN 80º=
√2
√3
2
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4sin²x+3cos²x+3sinx/2 +cosx/2 ன் அதிக பட்ச மதிப்பு
4+√2
3+√2
9
4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
COS 28º+ SIN 28º =k³ எனில் cos17º ன் மதிப்பு
k³/√2
-k³/√2
±k³/√2
k³/√3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(1-cosπ/8)(1+cos3π/8)(1+cos5π/8)(1+cos7π/8)=
1/8
1/2
1/√3
1/√2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
π<2θ<3π/2 எனில் √2+√2+2cos4θ ன் மதிப்பு
-2cosθ
-2sinθ
2cosθ
2sinθ
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tan 40º= λ எனில் tan140º-tan130º/1+tan140º tan130º
1-λ²/λ
1+λ²/λ
1+λ²/2λ
1-λ²/2λ
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