1-2ab-(a^2+b^2) का गुणनखंड करे।

Er Chandra Bhushan
0

हल : हमारे पास है 

1-2ab-(a²+b²)

=1-2ab-a²-b²

=1-(2ab+a²+b²) 

=(1)²-(a+b)²

=(1+a+b) [1-(a+b)]   ∵ a²-b²=(a+b) (a-b)

=(1+a+b) (1-a-b) 


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