If sina+sin2a 1 then cos2a+cos4a
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 … WebGet an answer for 'If Cos4A/ cos2B + sin4A/cos2B = 1 Then prove that: Cos4B/cos2A + sin4B/sin2A = 1 A and B being acute angles of right angled triangle.' and find homework help for other Math ...
If sina+sin2a 1 then cos2a+cos4a
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Web25 mei 2024 · If sinA + sin^2A = 1, then the value of the expression (cos^2A + cos^4A) is (a) 1 (b) 0 (c) 7 (d) 13 - Sarthaks eConnect Largest Online Education Community. WebIf sinA + sin 2 A = 1, then the value of the expression (cos 2 A + cos 4 A) is 1. Explanation: Given, sinA + sin 2 A = 1. ⇒ sin = 1 – sin 2 A = cos 2 A .....[∵ sin 2 θ + cos 2 θ = 1] On …
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 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 …
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 … 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:
Web22 mrt. 2024 · Transcript. Question 12 If sin A + sin2 A = 1, then the value of the expression (cos2 A + cos4 A) is (A) 1 (B) 1/2 (C) 2 (D) 3 Given sin A + sin2 A = 1 sin A = 1 − sin2 A …
Web6 okt. 2024 · Given, sin A + 2 cos A = 1 Squaring both sides, we get, sin2A + 4 cos2A + 4sinA cosA = 1 4 cos2A + 4sinA cosA = 1 - sin2A = cos2A 3 cos2A + 4sinA cosA = 0 ... (i) Now, (2sinA - cosA)2 = 4sin2A + cos2A - 4sinA cosA = 4sin2A + cos2A + 3cos2A [Using (i)] = 4 (sin2A + cos2A) = 4 Thus, 2sinA - cosA = 2 Hence, proved. Find Math textbook … maharashtra state board history 8th classWeb4 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 … maharashtra state board hall ticketWeb8 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) ... maharashtra state board examsmaharashtra state board hsc syllabusWebFirst, group the first two terms and factor it. Then, apply the Pythagorean identity which is . Then, group the second and last term at the left side of the equation. To simplify the expression ... nzxt h200 storage supportWeb30 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. maharashtra state board hsc resultWeb3 dec. 2024 · By formula, Substitute in the above equation, we get Hence proved. Advertisement Anonymous1756 Cos 4 A - Cos2A = (cos2A)2 - (cosA)2 = (1- sin2A)2 - cos2A = 1 + sin4A - 2sin2A - ( 1- sin2A) =1+ sin4A - 2 sin2A -1 + sin2A =sin4A - sin2A since LHS = RHS hence proved. Advertisement New questions in Math maharashtra state board hsc result 2021