I NEED STEP BY ATEP SOLUTION
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Take F1=x and F2= 2x acc to question
Now as R makes 90° with F1 .. apply pythogorous tum
R sq = x sq + 2x sq
Rsq = 9x sq
R= 3x
Rsq =√a sq + b sq + 2 ab cos©
3x sq = 6 x cos©
Cos© = -1\2
© = 120°
Guys it took so much to type please like it will be good.
Hope it helps
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