If m-n=16 and m2+n2=400, then find mn
Answers
Answered by
67
(m-n) 2 = 16*16
m2 + n2 -2mn = 256
400 -2mn =256
-2mn = 256-400
-2mn = -144
mn = 72
hope it helps.....
m2 + n2 -2mn = 256
400 -2mn =256
-2mn = 256-400
-2mn = -144
mn = 72
hope it helps.....
Answered by
6
m= 16+n
2(n+ m)=400
n+16+n= 200
2(n+8)=200
n=100-8=92
Now.
m = 16+ 92
= 108
mn= 108*92
=9936
2(n+ m)=400
n+16+n= 200
2(n+8)=200
n=100-8=92
Now.
m = 16+ 92
= 108
mn= 108*92
=9936
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