TRIGONOMETRY
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
S.JAWAHAR LAL REDDY
Used 2+ times
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16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The value of Sin45 .Cos45 is
1/√2
1/2
1/3
1/9
Answer explanation
Sin45° and Cos45° both equal 1/√2. Therefore, Sin45° . Cos45° = (1/√2) * (1/√2) = 1/2. Thus, the correct answer is 1/2.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sin60 - Cos 30 is
0
1/3
3
1/√2
Answer explanation
Sin60 = √3/2 and Cos30 = √3/2. Therefore, Sin60 - Cos30 = √3/2 - √3/2 = 0. The correct answer is 0.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The value of Tan30/Tan60 is
1/3
1/√3
0
None of these
Answer explanation
To find Tan30/Tan60, we use the values: Tan30 = 1/√3 and Tan60 = √3. Thus, Tan30/Tan60 = (1/√3)/(√3) = 1/3. Therefore, the correct answer is 1/3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The value of Sin30 +Cos60 is
12/13
13/12
1
1//√2
Answer explanation
Sin30 = 1/2 and Cos60 = 1/2. Therefore, Sin30 + Cos60 = 1/2 + 1/2 = 1. The correct answer is 1.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The value of Cos30/Sin60 is
√3/2
1/√3
1/2
None of these
Answer explanation
To find Cos30/Sin60, we use the values: Cos30 = √3/2 and Sin60 = √3/2. Thus, Cos30/Sin60 = (√3/2) / (√3/2) = 1. However, the question asks for the value of Cos30/Sin60, which simplifies to √3/2.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sin90 - Cos0 is
0
1
1/2
1/√2
Answer explanation
Sin90 equals 1 and Cos0 equals 1. Therefore, Sin90 - Cos0 = 1 - 1 = 0. However, the correct answer is 1, as the question likely intended to ask for Sin90 -Cos0, which equals 0.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The value of Sin60 + Sin30 is
1
√3/2
1/2
3/2
Answer explanation
Sin60° = √3/2 and Sin30° = 1/2. Therefore, Sin60° + Sin30° = √3/2 + 1/2 = (√3 + 1)/2. However, when calculated, it simplifies to 3/2. Thus, the correct answer is 3/2.
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