2024 If cos a + cos2 a 1 then sin2a + sin4a

If cos a + cos2 a 1 then sin2a + sin4a

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Web`cos^2A+cos^2A=2cos^2A` `2cos^2A=2cos^2A` Since left side simplifies to `2cos^2A` which is the same term with the right side, hence it proves that the given equation is an … WebIf sin A + sin2A = 1, then find the value of the expression (cos2A + cos4A). Browse by Stream Login. QnA. Home. QnA. Engineering and ... sin A + sin 2 A = cos 2 A + cos 4 A = 1. Posted by Safeer PP. View full answer Crack JEE Main with "AI Coach" HD Video Lectures Unlimited Mock Tests ...

If cosA + cos2 A = 1, then sin2 A + sin4 A = 1. Write ‘True

WebProve that, sin 2 A + cos 2 A = 1 Solution Step 1. Find out sin A and cos A Let ∆ A B C be right-angle triangle where A B = p, B C = q a n d A C = r. In the right-angle triangle ∆ A B C , sin A = Perpendicular Hypotenuse ⇒ sin A = B C A C ⇒ sin A = q r And, cos A = Base Hypotenuse ⇒ cos A = A B A C ⇒ cos A = p r Step 2. 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 … seeing the bigger picture meaning

sin2 A = 1, then the value of the expression (cos2 A - Cuemath

WebHello Student, please find the solution: Cos A+Cos 2 A=1 => cosA = 1 – cos 2 A = sin 2 A So, Required is sin 2 A + sin 4 A = Cos A+Cos 2 A =1 I hope the solution is clear Thanks. Web25 sep. 2024 · Assertion and Reason Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:(a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).(b) Both … Web扫码下载作业帮搜索答疑一搜即得 seeing the boy so upset

Prove the following: sin6A + cos6A = 1 − 3sin2A + 3 sin4A

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WebIf cosA + cos2A = 1, then sin2A + sin4A = 1. True: Reason: As indicated by the inquiry, \ [cos\text { }A+cos2\text { }A\text { }=\text { }1\] i.e., \ [cos\text { }A\text { }=\text { }1 … WebAssertion (A): If cos A + cos2A = 1 then sin2A + sin4A = 2 Reason (R): 1 – sin 2 A = cos 2 A, for any value of A Both (A) and (R) are true and (R) is the correct explanation of (A) Both (A) and (R) are true but (R) is not the correct explanation of (A) (A) is true but (R) is false (A) is false but (R) is true SHOW ANSWER 206. seeing the clear light of day reportWebsinA + sin 2 A = 1 Formula used: cos 2 A = 1 – sin 2 A Calculation: sinA + sin 2 A = 1 ---- (i) ⇒ sinA = 1 – sin 2 A ⇒ sinA = cos 2 A ---- (ii) ⇒ sin 2 A = cos 4 A ---- (iii) Now, we have … seeing the bright side quotes

"WebA A A A [ ∵ sin 2 A + cos 2 A = 1 ∴ 1 - cos 2 A = sin 2 A] ∴ cos 2 A = sin 4 A ..... [Squaring both the sides] ∴ 1 – sin 2 A = sin 4 A. ∴ 1 = sin 4 A + sin 2 A. ∴ sin 2 A + sin 4 A = 1. … " - If cos a + cos2 a 1 then sin2a + sin4a

If cos a + cos2 a 1 then sin2a + sin4a

WebIf sin A+sin2A=1, then cos2 A+cos4 A=? A 0 B 1 C 2 D 3 Solution The correct option is B 1 We have, sin A+sin2A=1 ⇒ sin A=1−sin2A ⇒ sin A=cos2 A−−−(i) Squaring both sides, ⇒ sin2 A=cos4 A−−−(ii) From equations (i) and (ii), we have cos2 A+cos4 A=sin A+sin2 A=1 Suggest Corrections 0 Similar questions Q. If sin A+sin2A=1, then cos2 A+cos4 A=? Q. Web29 aug. 2012 · = sec^2 A-[sin^2 A(1-2sin^2 A)/cos^2 A(2cos^2 A-1)] = sec^2 A-[sin^2 A(cos^A-sin^2 A)/cos^2 A(cos^2 A-sin^2A)] = sec^2 A-[sin^2 A(cos^A-sin^2 A)/cos^2 A(cos^2 A-sin^2A)] ... if cosec∅+cot∅=k then show that cos∅k²-1/k²+1. Asked by rc1827805 23 Dec, 2024, 08:11: PM. ANSWERED BY EXPERT. CBSE 10 - Maths.

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Web10 jan. 2011 · http://SkyingBlogger.Com - This is the 1st trigonometric identity that is Sin2A + Cos2A = 1. We are proving or deriving the trigonometric identity in this vi... Web23 nov. 2016 · This question do not have a particular solution. Like if we take A=45 degree and B=45 degree , then equation Sin2A +Cos2B =1 satisfies. And we get value of Cos2A + Sin2B =1 But if we take A= π/12 and B=π/6, then equation Sin2A +Cos2B =1 satisfies. And we get value of Cos2A + Sin2B =√3

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WebCorrect option is A) cosA+cos 2A=1. cosA=1−cos 2A. cosA=sin 2A. Hence. sin 4A+sin 2A. cos 2A+cosA. =1. Hence True. Web26 mrt. 2024 · the value of Sin2 a + sin4 a is 1 . Step-by-step explanation: cos a + cos2 a=1. we have to find the value of Sin2 a + sin4 a. as Sin2 a + cos2 a =1. given, cos a + …

Web9 aug. 2013 · If cosA +cos2A =1, then prove that sin2A+sin4A=1 - Maths - Introduction to Trigonometry. NCERT Solutions; Board Paper Solutions; Ask & Answer; School Talk; Login; GET APP; Login Create Account. Class-10 » Maths. Introduction to Trigonometry. If cosA +cos2A =1, then prove that sin2A+sin4A=1. Share with your friends.

Web22 mrt. 2024 · 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 sin A = cos2 A Now, cos2 A + cos4 A = cos2 A + (cos2 A) 2 Putting cos2 A = sin A = sin A + sin2 A Given sin A + sin2 A = 1 = 1 So, the correct answer is (A) seeing the future gifWebAnswer (1 of 5): \sin^4A + \sin^2A = 1 \sin^4A = 1 - \sin^2A \sin^4A = \cos^2A \sin^4A = \cos^2A (\sin^2A + \cos^2A) \sin^4A = \sin^2A \cos^2A + \cos^4A \sin^4A ... seeing the fall colors in new englandWebc o t A s i n 2 A = c o s A s i n A ( 2 s i n A c o s A) = c o s A ( 2 c o s A) = 2 c o s 2 A = 1 + c o s 2 A. This should be everything. After cancellation, you've got 2 cos 2 A on the left. One of your double angle identities will get you the rest of the way. Then use the identity 2 cos 2 A cos 2 A) 1 from this link here. seeing the curvature of the earth seeing the fruits of your laborWebNCERT Exemplar Class 10 Maths Exercise 8.2 Problem 5. If cosA + cos 2 A = 1, then sin 2 A + sin 4 A = 1. Write ‘True’ or ‘False’ and justify your answer. Summary: The sine function can be defined as the ratio of the length of the perpendicular to the length of the hypotenuse in a right angled triangle.The statement “If cosA + cos² A = 1, then sin² A + … seeing the gymnast on the lawn meaningWebCos A = 1- cos^2A Since : 1- cos^2A = sin^2 A Therefore : Cos A = sin^2 A By substitution in ( (sin²A+sin⁴A=1)) by ( (Cos A = sin^2 A)) Therefore sin²A+sin⁴A=cos A+cos²A= 1 Q.E.D Palvi Vaid M.SC [ MATHEMATICS] from University of Jammu,B.Ed Author has 540 answers and 815.5K answer views 9 mo CosA+Cos²A=1 √1-Sin²A+ (1-Sin²A)=1 √1 … seeing the face of god in each otherWeb29 nov. 2024 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright … seeing the clock at 11 11