Plz can anyone solve the 15th question
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this the answer may be
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15..
2(a2+b2)
=2a2+2b2
(a+b)2 = a2+b2+2ab
2a2+2b2=a2+b2+2ab
=a2+b2=2ab
=a2+b2-2ab=0
=(a-b)2 = 0
(a-b) (a-b) = 0
(a-b) = 0
{ When (a-b) goes to the opposite side .. 0/(a-b) = 0}
a-b=0
a=b
Hence proved...!!!
Hope this helps!!!
cheers!! (:
2(a2+b2)
=2a2+2b2
(a+b)2 = a2+b2+2ab
2a2+2b2=a2+b2+2ab
=a2+b2=2ab
=a2+b2-2ab=0
=(a-b)2 = 0
(a-b) (a-b) = 0
(a-b) = 0
{ When (a-b) goes to the opposite side .. 0/(a-b) = 0}
a-b=0
a=b
Hence proved...!!!
Hope this helps!!!
cheers!! (:
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