pls solve with proper steps and suitable property or identity
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==(31.5+18.5)^2/(12.2+12.8)^2
=(50/25)^2
=2^2=4
=(50/25)^2
=2^2=4
warrior10:
i have solved
i am not hungry for your mar ok
so send it
if you know you have solved then send it
first of all 4 is the right answer or not
yes its right but I am not able compile which numbers to take together
i made it
then mark as brainliest
seriously sorry but your concern i more of getting brainliest rather then teaching him
How to solve
Answered by
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31.5=63/2
18.5=37/2
write it as
numerator={(63*63)/4 + (63*37)/2 + (37*37)/4}
using identity,
a²+b²+2ab=(a+b)²
a=63/2
b=37/2
then,
{(63/2) + (37/2)}² =(100/2)²= 50²=2500
similarly for denominator,
12.8=25.6/2
and 12.2=24.4/2
use
a =24.4/2
b =25.6/2
in
(a²+b²+2ab)=(a+b)²
18.5=37/2
write it as
numerator={(63*63)/4 + (63*37)/2 + (37*37)/4}
using identity,
a²+b²+2ab=(a+b)²
a=63/2
b=37/2
then,
{(63/2) + (37/2)}² =(100/2)²= 50²=2500
similarly for denominator,
12.8=25.6/2
and 12.2=24.4/2
use
a =24.4/2
b =25.6/2
in
(a²+b²+2ab)=(a+b)²
i case of any confusion ask me
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