Question

plz solve the 21 and 22 question ASAP​

Answer 1

Step-by-step explanation:

22)

For roots to be equal discriminant=0

(2am)^2-4(a^2-b^2)(m^2+1)

Simplifying 4a^2-4b^2-4b^2m^2=0

a^2-b^2(1+m^2)=0

Option c)