Trigonometric EquationHard
Question
The resultant of forces 
and 
is 
. If is doubled then is doubled. If the direction of is reversed, then is again doubled. Then P2 : Q2 : R2 is
and is . If is doubled then is doubled. If the direction of is reversed, then is again doubled. Then P2 : Q2 : R2 is Options
A.3 : 1 : 1
B.2 : 3 : 2
C.1 : 2 : 3
D.2 : 3 : 1
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