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Priya123
@priya123
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Joined: May 7, 2021
Last seen: Jul 27, 2023
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Topics: 2064 / Replies: 139
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Topic
Express sin 67° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°.
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 135
Topic
If A, B and C are interior angles of a triangle ABC, then show that sin (B + C/2) = cos A/2
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 140
Topic
Find the remainder, when the polynomial 2x 4 +x 3 + 4x 2 - 3x−2 is divided by x−3 (without applying long division).
4 years ago
Forum
Maths
Replies: 0
Views: 1526
Topic
If sec 4A = cosec (A – 20°), where 4A is an acute angle, find the value of A.
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 155
Topic
If tan A = cot B, prove that A + B = 90°.
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 115
Topic
If tan 2A = cot (A – 18°), where 2A is an acute angle, find the value of A.
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 98
Topic
Show that: (i) tan 48° tan 23° tan 42° tan 67° = 1 (ii) cos 38° cos 52° – sin 38° sin 52° = 0
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 113
Topic
Evaluate : (i) cos 48° – sin 42° (ii) cosec 31° – sec 59°
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 120
Topic
Evaluate : (i) sin 18°/cos 72° (ii) tan 26°/cot 64°
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 125
Topic
sin (A + B) = sin A + sin B. (ii) The value of sin θ increases as θ increases. (iii) The value of cos θ increases as θ increases
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 128
Topic
If tan (A + B) = √3 and tan (A – B) = 1/√3, 0° < A + B ≤ 90°; A > B, find A and B.
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 140
Topic
2tan30°/1-tan^2 30° = (A) cos 60° (B) sin 60° (C) tan 60° (D) sin 30°
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 110
Topic
1 - tan^245°/1+tan^245° = (A) tan 90° (B) 1 (C) sin 45° (D) 0
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 114
Topic
Choose the correct option and justify your choice : 2tan 30°/1+tan230° = (A) sin 60° (B) cos 60°
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 101
Topic
sin 2A = 2 sin A is true when A = (A) 0° (B) 30° (C) 45° (D) 60°
4 years ago
Forum
Introduction to Trigonometry
Replies: 0
Views: 102
Topic
Why do you think the nationalist movement supported the idea that all adults have a right to vote?
4 years ago
Forum
Why Do We Need a Parliament?
Replies: 0
Views: 139
Topic
Write a brief note on the Members of Parliament.
4 years ago
Forum
Why Do We Need a Parliament?
Replies: 0
Views: 157
Topic
What is ‘Question hour’ in Parliament?
4 years ago
Forum
Why Do We Need a Parliament?
Replies: 0
Views: 124
Topic
How is a National government selected?
4 years ago
Forum
Why Do We Need a Parliament?
Replies: 0
Views: 116
Topic
What are the three major duties of the Parliament?
4 years ago
Forum
Why Do We Need a Parliament?
Replies: 0
Views: 750
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