Question

(c+a)^3÷(b+d)^3=b(a-c)^4÷a(b-d)^4​

Answer 1

Answer:

Given a:b=2:3,b:c=4:5,c:d=6:7

a:b=2×8:3×8=16:24

b:c=4×6:5×6=24:30

c:d=6×5:7×5=30:35

soa:b:c:d=16:24:30:35