a^2 - b^2
If a^2+b^2=42 and ab =4 find the following:
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Answered by
1
Answer:
Can u pls tell what should we find ?
Pls mark me as brainlist bcoz nobody is marking me
Answered by
1
Answer:
a^2-b^2=10√17
Step-by-step explanation:
a^2+b^2=42
a+b=4
a^2-b^2=(a+b)(a-b)[{eq1}]
(a+b)^2=a^2+b^2+2ab
42+8
50
(a+b)=√50
similarly,
(a-b)=√34
from [{eq1}]
√50*√34=√1700
=10√17
I hope you need this
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