WebSolution Verified by Toppr sinA= 2 3(Given) 2cot 2A−1 =2cot 2A+2−2−1 =2(cot 2A+1)−3 =2cosec 2A−3 = sin 2A2 −3 =2( 32)2−3 = 38−3 = 3−1 Was this answer helpful? 0 0 Similar questions If sin A= 2 3 and cos B= 2 3, find the value of : 1+tan A tan Btan A−tan B … WebIf sinθ=1/3, find the value of 2cot 2θ+2 Easy Solution Verified by Toppr Given sinθ=1/3 cosecθ=3 2cot 2θ+2=2(1+cot 2θ)=2cosec 2θ=2(9)=18 Was this answer helpful? 0 0 …
if sin A = √3/2, find the value of 2 cot square A -1 - Brainly.in
Web31 jul. 2024 · 2cot^2A = 2 (Cot^2A + 1) = 2Cosec^2 A ( cot^2A + 1 = Cosec^2A) = 2/ Sin^2A (Cosec^2A = 1/Sin^2A) = 2 / (1/3)^2 = 2 * 9 = 18 Ans = 18 at July 31, 2024 Email ThisBlogThis!Share to TwitterShare to FacebookShare to Pinterest No comments: Post a Comment To leave a comment, click the button below to sign in with Google. Sign in with … WebcotA-tanA = 2.cot 2A L.H.S. =cosA/sinA-sina/cosA = (cos^2A-sin^2A)/sinA.cosA = (cos2A)/ (1/2.sin2A) =2. (cos2A/sin2A) =2.cot2A , Proved. 21 Sponsored by TruHeight FINAL4 for 20% Off! Our proprietary blend of 7 natural herbs can support immune health and overall well being. Shop Now 75 Harish Chandra Rajpoot forest hill police chief
2) If sinA = root 3/2, find the value of 2cot2A-1 - Maths ...
Webcot A = 1 tan A = cos A sin A. We know the identity: sin 2 θ + cos 2 θ = 1 ⇒ cos θ = 1 - sin 2 θ Now, ⇒ cos A = 1 - sin 2 A ……………. 2 From equation 1 , ⇒ cos A = 1 - 1 4 = 3 4 = 3 2 Since, cot A = cos A sin A cot A = 3 2 × 2 = 3 Hence, option A is the correct option. Suggest Corrections 1 Similar questions Q. Web15 aug. 2024 · If 3sinA + 2cosA = 0 tyen the value of cot2A is equal to: a. -4/3 b. -12/5 c. -5/12 d. -3/4 See answers Advertisement vinod04jangid Answer: Step-by-step … Webtrigonometry - Prove that $\sin (2A)+\sin (2B)+\sin (2C)=4\sin (A)\sin (B)\sin (C)$ when $A,B,C$ are angles of a triangle - Mathematics Stack Exchange Prove that sin ( 2 A) + sin ( 2 B) + sin ( 2 C) = 4 sin ( A) sin ( B) sin ( C) when A, B, C are angles of a triangle Ask Question Asked 10 years, 10 months ago Modified 5 years, 11 months ago diesel cars hatchback us