Question

if a:b=c:d then the value of (a^2+b^2)/(a^2 -b^2)​

Answer 1

Answer:

(Csqr +Dsqr) / (Csqr-Dsqr)

Step-by-step explanation:

dividing both num and dino by Bsqr

(Asqr/Bsqr + 1) / (Asqr/Bsqr - 1)

now put C/D in place of A/B from expression first.