Forum Forums Class-10 Maths Introduction to Tri... Notifications Clear all Introduction to Trigonometry Page 3 / 5 Prev 1 2 3 4 5 Next Votes & Answers Question Question Status 0 1 144 If tan 2A = cot (A – 18°), where 2A is an acute angle, find the value of A. By Priya123, 4 years ago replies 1 0 1 149 Show that: (i) tan 48° tan 23° tan 42° tan 67° = 1 (ii) cos 38° cos 52° – sin 38° sin 52° ... By Priya123, 4 years ago replies 1 0 1 157 Evaluate : (i) cos 48° – sin 42° (ii) cosec 31° – sec 59° By Priya123, 4 years ago replies 1 0 1 160 Evaluate : (i) sin 18°/cos 72° (ii) tan 26°/cot 64° By Priya123, 4 years ago replies 1 0 1 186 sin (A + B) = sin A + sin B. (ii) The value of sin θ increases as θ increases. (iii) The v... By Priya123, 4 years ago replies 1 0 1 197 If tan (A + B) = √3 and tan (A – B) = 1/√3, 0° < A + B ≤ 90°; A > B, find A and B. By Priya123, 4 years ago replies 1 0 1 148 2tan30°/1-tan^2 30° = (A) cos 60° (B) sin 60° (C) tan 60° (D) sin 30° By Priya123, 4 years ago replies 1 0 1 145 sin 2A = 2 sin A is true when A = (A) 0° (B) 30° (C) 45° (D) 60° By Priya123, 4 years ago replies 1 0 1 152 1 - tan^245°/1+tan^245° = (A) tan 90° (B) 1 (C) sin 45° (D) 0 By Priya123, 4 years ago replies 1 0 1 141 Choose the correct option and justify your choice : 2tan 30°/1+tan230° = (A) sin 60° (B) c... By Priya123, 4 years ago replies 1 Page 3 / 5 Prev 1 2 3 4 5 Next Share: Super Globals Requests: Server: Options and Features route: community use_home_url: url: https://eanshub.com/community/ pageid:187 default_groupid: 3 2022 How Can We Help? Δ Home About Us Contact Us Privacy Policy Term of Use Copyright © 2020 Eanshub All Rights Reserved
