Forum Forums Class-10 Maths Introduction to Tri... Notifications Clear all Introduction to Trigonometry Ask a question Page 2 / 5 Prev 1 2 3 4 5 Next Votes & Answers Question Question Status 0 1 178 (sec A + tan A) (1 – sin A) = (A) sec A (B) sin A (C) cosec A (D) cos A By Satkriti Roao, 4 years ago replies 1 0 1 211 (1 + tan θ + sec θ) (1 + cot θ – cosec θ) (A) 0 (B) 1 (C) 2 (D) –1 By Satkriti Roao, 4 years ago replies 1 0 1 161 9 sec^2A – 9 tan^2A = (A) 1 (B) 9 (C) 8 (D) 0 By Satkriti Roao, 4 years ago replies 1 0 1 192 Evaluate: (i) (sin^2 63° + sin^2 27°)/(cos^2 17° + cos^2 73°) (ii) sin 25° cos 65° + cos 2... By Satkriti Roao, 4 years ago replies 1 0 1 334 Write all the other trigonometric ratios of ∠A in terms of sec A. By Satkriti Roao, 4 years ago replies 1 0 1 174 Express the trigonometric ratios sin A, sec A and tan A in terms of cot A. By Satkriti Roao, 4 years ago replies 1 0 1 175 Express sin 67° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°. By Priya123, 4 years ago replies 1 0 1 177 If A, B and C are interior angles of a triangle ABC, then show that sin (B + C/2) = cos A/... By Priya123, 4 years ago replies 1 0 1 196 If sec 4A = cosec (A – 20°), where 4A is an acute angle, find the value of A. By Priya123, 4 years ago replies 1 0 1 160 If tan A = cot B, prove that A + B = 90°. By Priya123, 4 years ago replies 1 Page 2 / 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
