a^2+b^2=45, a+b=9,then a-b?
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Answered by
0
Your answer will be √81=9 .
Find the value of 2ab from the first equation and then put its value in the second equation.
Find the value of 2ab from the first equation and then put its value in the second equation.
Answered by
3
a square+b square=45
ie, 6 square+3 square=45
36+9=45
45=45
a+b=9
6+3=9
9=9
a-b
6-3=3
Therefore a=6
b=3
ie, 6 square+3 square=45
36+9=45
45=45
a+b=9
6+3=9
9=9
a-b
6-3=3
Therefore a=6
b=3
niteshkdeshwar:
(a+b)×(a-b)=a^2+b^2
no
No it is a square- b square
a^2-b^2
Ok
Mmm
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