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Que no. 4 plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Que no. 4 plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

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Grade:12th pass

1 Answers

Arun
25750 Points
4 years ago
Dear Aryan
 
square both the equations and add
 
you get
 
9 + 16 + 24 sin (P + Q) = 36 + 1
 
sin (P + Q) = ½
 
hence P + Q = 150
 
so R = 180 – 150 = 30

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