Question

plzzz ans.....Thnk u

Answer 1

as , a , b , c are in continued proportion

=> a : b :: b : c

=> a/b = b/c

=> b² = ac

LHS = (pa² + qab + rb²) / (pb² + qbc + rc² )

=> ( pa² + qab + rac ) / ( pac + qbc + rc² ). (as , b² = ac )

=> a ( pa + qb + rc ) / c ( pa + qb + rc )

as , ( pa + qb + rc ) gets cancelled out

=> LHS = a/c

RHS = a/c


since , LHS = RHS

hence , PROVED

hope this helps