Elementary Mathematics Topics
School level (Class 6–12) — Elementary Mathematics
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filter_alt Topics
Number Systems
Algebra Basics
Mensuration
Statistics Intro
Trigonometry Basics
quiz Questions
Q201
Value of sin 30° is:
1
0
√3/2
1/2
Explanation
sin 30° = 1/2 (standard trigonometric ratio).
Q202
Value of cos 60° is:
√3/2
1/2
0
1
Explanation
cos 60° = 1/2.
Q203
Value of tan 45° is:
√3
0
1
1/2
Explanation
tan 45° = 1.
Q204
sin²θ + cos²θ equals:
2
0
tan²θ
1
Explanation
Pythagorean identity: sin²θ + cos²θ = 1.
Q205
Trigonometry Basics — Value of sin 30° is:
√3/2
1/2
1
0
Explanation
sin 30° = 1/2 (standard trigonometric ratio).
Q206
Trigonometry Basics — Value of cos 60° is:
0
√3/2
1
1/2
Explanation
cos 60° = 1/2.
Q207
Trigonometry Basics — Value of tan 45° is:
1
√3
0
1/2
Explanation
tan 45° = 1.
Q208
Trigonometry Basics — sin²θ + cos²θ equals:
2
tan²θ
1
0
Explanation
Pythagorean identity: sin²θ + cos²θ = 1.
Q209
Trigonometry Basics (Set 9) — Value of sin 30° is:
√3/2
0
1/2
1
Explanation
sin 30° = 1/2 (standard trigonometric ratio).
Q210
Trigonometry Basics (Set 10) — Value of cos 60° is:
1
0
√3/2
1/2
Explanation
cos 60° = 1/2.