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If 7sin2a + 3cos2a 4 show that tan a 1/√3

WebAnswer: Option C Solution (By Examveda Team) 7 sin 2 θ + 3 co s 2 θ = 4 ⇒ 7 sin 2 θ + 3 ( 1 − si n 2 θ) = 4 ⇒ 7 sin 2 θ + 3 − 3 sin 2 θ = 4 ⇒ 4 sin 2 θ = 1 ⇒ sin 2 θ = 1 4 ⇒ sin θ = 1 2 = sin 3 0 ∘ θ = 30 ∘ = π 6 [ ∵ π c = 180 ∘] Join The Discussion Related Questions on Trigonometry The minimum value of 2sin2θ + 3cos2θ is ? A. 0 B. 3 C. 2 D. 1 Web3sin 2 A + 7cos 2 A = 4 Formula used: sin 2 A + cos 2 A = 1 Calculation: 3sin 2 A + 7cos 2 A = 4 ⇒ 3sin 2 A + 7 (1 - sin 2 A) = 4 ⇒ 3sin 2 A + 7 - 7sin 2 A = 4 ⇒ -4sin 2 A + 7 = 4 ⇒ sin 2 A = 3/4 ⇒ sinA = √3/2 ⇒ A = 60 ⇒ tan60 = √3 ∴ The value of tan60 is √3. Download Solution PDF Share on Whatsapp Latest SSC CHSL Updates

If tan⁡A=3/4 , find the value of 1/sin⁡A +1/cos⁡A - teachoo

WebIf 7sin2A+3cos2 A = 4 show that tan A =13 7sin2A+3cos2A=47sin2A+3cos2A=4sin2A+cos2A7sin2A+3cos2A=4sin2A+4cos2A3sin2A=cos2Asin2A … WebAnswer (1 of 3): Note that angles with a tangent value of 3/4 are of the form 36.87^{\circ} +180^{\circ} k for some integer k. They can be either in the first quadrant (36.87 degrees, 396.87 degrees, etc) or in the third quadrant ( 216.87 degrees, 576.87 degrees, etc). Remember tan = sin/cos, &... indian railway 4148066 https://vazodentallab.com

If tan A * tan B = ½, then (5 – 3 cos 2A) (5 – 3 cos 2B)

Web1 sep. 2014 · If 7sin2A + 3cos2A = 4 then find the value of root3tanA . Share with your friends 1 Follow 2 Manbar Singh, Meritnation Expert added an answer, on 1/9/14 Web8 mrt. 2024 · 3) 7sin2A+3cos2A=4. Show that tanA= 3 1 Viewed by: 5,498 students Updated on: Mar 8, 2024 1 student asked the same question on Filo Learn from their 1 … Webfind acute angle a and b if sin(a+2b)= indian railway 4200603

If tan A = a/ (a+1) and tan B = 1/ (2a+1) , then find the value of A ...

Category:7sin2a+3cos2a =4 then show the tana=1/√3 - Brainly.in

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If 7sin2a + 3cos2a 4 show that tan a 1/√3

Ex 8.1, 9 - In ABC, if tan A = 1/ root 3, find sin A cos C - teachoo

Web6 feb. 2024 · If 7sin2A+3cos2A=4, show that tanA= 3 1. [CBSE 2015] 28. For any acute angle θ, prove that [CBSE 2015] (a) Sin2θ+cos2θ=1 (b) 1+cot2θ=cosec2θ 29. Prove that: sec2θ+cosec2θ =tanθ+cotθ. [CBSE 2015] 30. Prove that: sinA−cosAsinA+cosA+sinA+cosAsinA−cosA=1−2cos2A2. [CBSE 2015] 3i. If sinθ=x and … WebIf 7sin^2a+3cos^2a=4 show that tana= 1/√3. If 7sin^2 theta+3cos^2 theta=4 show that tan theta= 1/√3. Trigonometry class 10 important questions. #trigonometry......

If 7sin2a + 3cos2a 4 show that tan a 1/√3

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Web5 okt. 2024 · Using the above formulae 1, 2 and 3, convert the expression as follows: tan θ sec θ sin θ tan θ cot θ. Now using formula 4, modifying the last two terms of first step, tan θ sec θ sin θ × 1. Using formula 5, the expression becomes: sinθ/cosθ × sec θ × sin θ. Applying formula 6, the expression is converted to: sinθ/cosθ × 1/cosθ × sin θ Web3 sep. 2024 · 7 sin²A + 3 cos²A = 4 4 sin²A + 3 sin²A + 3 cos²A = 4 3 sin²A + 3 cos²A = 4 - 4 sin²A 3 ( sin²A + cos²A ) = 4 ( 1 - sin²A ) 3 ( 1 ) = 4 ( cos²A ) 3 = 4 × cos²A Hence, tanA = …

WebIt's not always easy to find the formula you need, and impossible to remember them all, so here's a collection of some I have found useful. WebAnswer: Option B Solution (By Examveda Team) 7 sin 2 θ + 3 co s 2 θ = 4 7 sin 2 θ + 3 ( 1 − si n 2 θ) = 4 7 sin 2 θ + 3 − 3 sin 2 θ = 4 4 sin 2 θ = 1 sin 2 θ = 1 4 sin θ = 1 2 sin θ = sin 30 ∘ θ = 30 ∘ sec θ + cosec θ = sec 30 ∘ + cosec 30 ∘ = 2 3 + 2 Join The Discussion * Related Questions on Trigonometry The minimum value of 2sin2θ + 3cos2θ is ?

WebFind the general solution of equation tan3∂=cot2∂ For all angles between -720 and +720 Answer & Earn Cool Goodies. To prove : Cosec (45 degree - A)Cosec (45 degree + A) = 2SecA Answer & Earn Cool Goodies. if B, D, E and Care four houses in a row. Residents of these houses planned, to build a rain water...

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WebAnswer (1 of 11): Notice, 7\sin^2\theta+3\cos^2\theta=4 \frac{7\tan^2\theta}{\sec^2\theta}+\frac{3}{\sec^2\theta}=4 \frac{7\tan^2\theta+3}{\sec^2\theta}=4 7\tan^2 ... indian railway 4192198Web30 mei 2014 · If 7 sin^2 theta + 3 cos^2 theta = 4, prove that, tan theta= 1/root3 Advertisement Expert-Verified Answer 628 people found it helpful Brainly User Answer :- → tan30° = 1/3 . Step-by-step explanation :- We have, → 7 sin² ∅ + 3 cos² ∅ = 4 . ⇒ 4 sin²∅ + 3 sin²∅ + 3 cos²∅ = 4 . ⇒ 4 sin²∅ + 3 ( sin²∅ + cos²∅ ) = 4 . location of under cabinet lightsWeb∴ cos 2 A + cos 4 A is 1. Download Solution PDF. Share on Whatsapp Latest CDS Updates. Last updated on Apr 6, ... + tan 1° ⋅ tan 10°⋅ tan 20°⋅ tan 70°⋅ tan 80°⋅ tan 89°⋅ . Q10. If sin x + cosec x = 2, then sin2x + cosec2x ... If the length of a shadow cast by a pole is √3 times the length of the pole, then the angle of ... indian railway 4201916WebIf cosec x + cot x = 11 2, then the value of tan x is _____. Mathematics. RD Sharma XI (2024, 2024)_Volume 1. All. indian railway 4210374Web If 7sin 2 A+3cos 2 A = 4, show that tan A =1/ 3. Please scroll down to see the correct answer and solution guide. Right Answer is: SOLUTION 7sin2A+3cos2A=4 7sin2A+3cos2A=4 (sin2A+cos2A) 7sin2A+3cos2A=4sin2A+4cos2A 3sin2A=cos2A (sin2A/ cos2A)=1/3 tan2A=1/3 tanA=1/3. indian railway 4217291Web25 mrt. 2024 · Click here 👆 to get an answer to your question ️ if sinA=a/b, then Find the value of secA+tanA location of underground services trainingWeb30 mrt. 2013 · 2011-12-29 已知tana=3 求sin2a-cos2a 详细过程 3 2015-03-06 已知tana =2，求sin2a，cos2a和tan2a的值 2024-07-20 已知tan=3，求sin2a-2cos平方a的值 1 indian railway 4242323