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
Q211
Trigonometry Basics (Set 11) — Value of tan 45° is:
√3
1/2
1
0
Explanation
tan 45° = 1.
Q212
Trigonometry Basics (Set 12) — sin²θ + cos²θ equals:
1
tan²θ
2
0
Explanation
Pythagorean identity: sin²θ + cos²θ = 1.
Q213
Trigonometry Basics (Set 13) — Value of sin 30° is:
√3/2
1/2
0
1
Explanation
sin 30° = 1/2 (standard trigonometric ratio).
Q214
Trigonometry Basics (Set 14) — Value of cos 60° is:
0
√3/2
1/2
1
Explanation
cos 60° = 1/2.
Q215
Trigonometry Basics (Set 15) — Value of tan 45° is:
√3
0
1/2
1
Explanation
tan 45° = 1.
Q216
Trigonometry Basics (Set 16) — sin²θ + cos²θ equals:
tan²θ
0
1
2
Explanation
Pythagorean identity: sin²θ + cos²θ = 1.
Q217
Trigonometry Basics (Set 17) — Value of sin 30° is:
1
1/2
√3/2
0
Explanation
sin 30° = 1/2 (standard trigonometric ratio).
Q218
Trigonometry Basics (Set 18) — Value of cos 60° is:
√3/2
0
1
1/2
Explanation
cos 60° = 1/2.
Q219
Trigonometry Basics (Set 19) — Value of tan 45° is:
1/2
√3
0
1
Explanation
tan 45° = 1.
Q220
Trigonometry Basics (Set 20) — sin²θ + cos²θ equals:
tan²θ
0
2
1
Explanation
Pythagorean identity: sin²θ + cos²θ = 1.