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Assertion (A) : In a Delta ABC if r_(1)=2r_(2)=3r_(3) then a:b=5:4 Reason (R) : In a DeltaABC, if xr_(1)=yr_(2)=zr_(3)= (x+y+z) r, then a:b:c=y+z:z+x:x+y

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A is true, r is true and R is CORRECT EXPLANATION of A
A is true, R is true and R is not correct explanation of A
A is TRE, R is false
A is false, R is true

Answer :A


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