WebSolve for a cos (2a)=3/5. cos (2a) = 3 5 cos ( 2 a) = 3 5. Take the inverse cosine of both sides of the equation to extract a a from inside the cosine. 2a = arccos(3 5) 2 a = arccos … Webcos2A = sin3A ==> cos2A = cos(90 - 3A) ==> Either 2A = 90 - 3A or 2A = -(90 - 3A) ==> 5A = 90 or 2A = -90 +3A ... Answer by Theo(12599) (Show Source): You can put this solution on YOUR website! i was able to find the solution graphically. that solution is shown below in the following 4 pictures. first picture takes you from -400 degrees to 0 ...
sinA =4/5 , then sin2A = ? Wyzant Ask An Expert
Webcos(A+B)= 12544 and cos(A− B) = 54 Explanation: As angles A and B are acute angles all ... A is an acute angle and cosA = 135 . Without using multiplication or calculator,find the value of each of the following trigonometry function a) cos(180°− A) ... Jane Mar 17, 2024 We know,that, cos(180− A) = −cosA = −135 sin(180−A) = sinA = 1 ... WebApr 9, 2024 · However, I don't know what function to use to find the adjacent as it's not a right-angled triangle because there is an obtuse angle. trigonometry; algebraic-geometry; triangles; Share. Cite. Follow edited Aug 29, 2024 at 14:22. Charlie. asked Apr 9, 2024 at 15:32. Charlie Charlie. aranesp tarif
If A+B+C=(3pi)/2, cos2A+cos2B+cos2C=...............? Socratic
WebEngineering and Architecture; Computer Application and IT; Pharmacy; Hospitality and Tourism; Competition; School; Study Abroad; Arts, Commerce & Sciences; Management and Business Administration WebApr 9, 2024 · ∴ 125 × 20 = x × 25 x = 25 125 × 20 = 100 ∴ Number of soldiers transferred = = 125 − 100 25 5)1112024 Exercise 10.2 1. Aman has money to buy 25 chairs worth ₹ 500 each. How many chairs he will be able to buy if each chair iscosting ₹125 more? Two trains cover a distance between two stations A and B.First train moves at an average speed of … bakahnal radio uk