Question

If a + ib = c + id A)a^2+c^2=0
B)b^2+c^2= 0
C)b^2+d^2= 0
D)a^2+b^2= c^2+d^2

Answer 1

Answer:

d]a^2+b^2= c^2+d^2

Step-by-step explanation:

a2+c2=0

b2+c2=0

b2+d2=0

a2+b2=c2+d2

Answer :

D

Solution :

Given that, a+ib=c+id

⇒|a+ib|=|c+id|

⇒a2+b2−−−−−−√=c2+d2−−−−−−√

On squaring both sides, we get

a2+b2=c2+d2