If sina+sin2a 1 then cos2a+cos4a
Web4 jun. 2024 · sinA + sin 2 A = 1. ⇒ sinA = 1 – sin 2 A = cos 2 A ----(1) (? sin 2 θ + cos 2 θ = 1) Squaring on both sides. sin 2 A = cos 4 A ----(2) Substitute (1) and (2) in the given … Web30 aug. 2013 · If SinA+sin^2A=1then cos^2A+cos^4A=1 Trigonometry The angle of elevation of a cloud from a point h meter above a lake is beeta and the angle of …
If sina+sin2a 1 then cos2a+cos4a
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Web17 nov. 2024 · Math Secondary School answered SinA+sin2A=1 then cos2A+cos4A=? See answers Advertisement mathdude500 Answer: 1 Step-by-step explanation: please find the attachment Advertisement suman8615 Answer: 1 is the answer................... Advertisement Advertisement Web24 sep. 2009 · If sinA + Sin 2 A = 1 Then prove that Cos 2 A + Cos 4 A = 1 Share with your friends 15 Follow 12 Certified by MeritNation Expert Ayushi Bafna, added an answer, on …
WebSolution The correct option is A 2 y Explanation for the correct option. Step 1: Find the value of x 2 + y 2 Given that, sin A + sin 2 A = x and cos A + cos 2 A = y. Web30 nov. 2024 · HERE IS UR ANSWER sin A +sin^2A= 1 sina+1−cos2a=1 sina−cos2a=0 sina=cos2a Squaring both sides (sina)2= (cos2a)2 sin2a=cos4a use sin2θ+cos2θ=1: 1−cos2a=cos4a 1=cos4a+cos2a Hope U understand Thanks and Mark me as the BRAINLIEST Advertisement Still have questions? Find more answers Ask your question 13.
WebGiven: sin A + sin 2 A = 1. sin A = 1 – sin 2 A. sin A = cos 2 A .... (i) Squaring both sides. sin 2 A = cos 4 A ..... (ii) Add equations (i) and (ii) sin A + sin 2 A = cos 2 A + cos 4 A = 1. Web24 jan. 2024 · If sin A + sin2 A =1,then find the value of cos 2 A + cos4 A - 7808701. iteshpal84 iteshpal84 24.01.2024 Math Secondary School answered If sin A + sin2 A =1,then find the value of cos 2 A + cos4 A See answers Advertisement Advertisement Brainly User Brainly User Answer:
Web13 dec. 2016 · Explanation: Our starting goal is to turn all terms into cosine. Use the identity sin2θ + cos2θ = 1. sina + 1 − cos2a = 1. sina − cos2a = 0. sina = cos2a. Square both …
Web16 nov. 2024 · Math Secondary School answered SinA+sin2A=1 then cos2A+cos4A=? See answers Advertisement mathdude500 Answer: 1 Step-by-step explanation: please find … how to calculate salary sacrifice amountWebQ: If sinA + sin2A = 1, then cos2A + cos4A = …… (1) ½ (2) 1 (3) 2 (4) 4 A: Given that sinA+sin2A=1 sinA=1-sin2A sinA=cos2A Q: Find the exact value of the expression sin-1 (cos 2π/3). Do not use a calculator. A: From unit circle we get cos 2π/3= -1/2 Q: If sin θ = -0.9, find the value of sin θ + sin (θ + 2!) + sin (θ + 4) mgr christophe dufourWeb26 mrt. 2024 · Prove that cos4A – sin4A + 1 = 2 cos2A. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. how to calculate salary to hourly rateWeb8 mrt. 2024 · Prove that \(\frac{cos2A}{1 + sin2A}\) = tan(45° – A) LIVE Course for free. Rated by 1 million+ students ... If sinA + sin2A = 1 then what is the value of cos2A + cos4A? asked Mar 2, 2024 in Trigonometry by PrashantPandey (60.0k points) trigonometry; 0 votes. 1 answer Prove that(sin2A + sin5A - sinA)/(cos2A + cos5A + cosA) ... how to calculate salary to biweekly payWebSolve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. mgrc infusion center maple groveWeb29 mrt. 2012 · If sinA + sin 2 A = 1 , then the value of the expression (cos 2 A + cos 4 A) is ? Please help!! Share with your ... Ans: 1. cos2a + cos4a = ( 1 - sin2a) + (cos2a)2 = (sin a ) + (1 sin2a)2 = sin a + ( 1 - sin2a)2 = sin a + sin2 a = 1. 8 ; View Full Answer hope that helps -1 ; sinA + sin 2 A = 1 => sinA = 1-sin 2 A sinA = cos 2 A ... mgr christoryWebProve that sin^4A + cos^4A = 1 - 2 sin^2A·cos^2A Question Prove that sin 4A+cos 4A=1−2sin 2A⋅cos 2A Medium Solution Verified by Toppr sin 4A+cos 4A We have (a 2+b 2) 2=a 4+b 4+2a 2b 2 ⇒a 4+b 4=(a 2+b 2) 2−2a 2b 2 Take a=sinA and b=cosA we get sin 4A+cos 4A=(sin 2A+cos 2A) 2−2sin 2Acos 2A =1−2sin 2Acos 2A proved. Was this … mgr christophe pierre