ICSE Class 9 Answered
If 2sin (A+B)-1=0 and 2sin (A-B)-
3=0
Find A and B
Asked by abhiraj.abhinav39 | 31 May, 2019, 05:23: PM
Expert Answer
2 sin (A + B) - 1 = 0 and 2 sin (A - B) - √3 = 0
2sin(A + B) = 1 and 2sin (A - B) = √3
sin (A + B) = 1/2 and sin (A - B) = √3/2
A + B = 30° and A - B = 60°
Solving both equations simultaneously we get A = 45° and B = -15°
Answered by Sneha shidid | 31 May, 2019, 06:25: PM
Concept Videos
-
Trigonometric ratios of some specific angles
Trigonometric ratios of some specific angles like 0,30,45,60,90 degrees. -
Concepts and problem solving on trigonometric ratios of ...
Trigonometric ratios of some specific angles like 0,30,45,60,90 degrees. -
Problem solving and discussion on trigonometric ratios ...
Trigonometric ratios of some specific angles like 0,30,45,60,90 degrees.
ICSE 9 - Maths
Asked by indirasolanki5661.9sdatl | 08 Mar, 2021, 07:37: PM
ANSWERED BY EXPERTICSE 9 - Maths
Asked by Likithavenk | 18 Jun, 2019, 09:36: PM
ANSWERED BY EXPERTICSE 9 - Maths
Asked by abhiraj.abhinav39 | 31 May, 2019, 05:23: PM
ANSWERED BY EXPERTICSE 9 - Maths
Asked by pest34 | 26 Feb, 2018, 07:35: PM
ANSWERED BY EXPERT
