If a 30 then sin2a
Web2 sin an sin b product Web11 dec. 2024 · If the angles A, B and C of a triangle are in an arithmetic progression and if a, b and c denote the lengths of the sides opposite to A, B and C, respectively, then the value of the expression a/c sin 2c + c/a sin 2A is (a) 1/2 (b) √3/2 (c) 1 (d) √3 trigonometric identities jee jee mains 1 Answer +1 vote
If a 30 then sin2a
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Web29 mrt. 2024 · Transcript. Ex 8.2, 2 Choose the correct option and justify your choice : (iii) sin 2A = 2 sin A is true when A = 0 (B) 30 (C) 45 (D) 60 sin 2A = 2 sin A Here, we … WebIf A = 30°, then 2A = 60°. We know sin 60° = √3/2 using the trigonometry table. So, we have sin30° cos30° = sin60° / 2 = (√3/2) / 2 = √3 / 4 Answer: sin30° cos30° = √3/4 Example 2: Find the value of sinA cosA if sin2A = 2/3 Solution: Using the sinA cosA formula, we have sinA cosA = sin2A / 2 = (2/3) / 2 = 2/6 = 1/3
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 Web7 jul. 2024 · Math Secondary School answered If A=30°,verify that sin 2A=2sinA cosA Advertisement Loved by our community 84 people found it helpful AsraIbrahim sin2 …
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