যদি a + b = 2, ab = 1 হয়, তবে a এবং b মান যথাক্রমে-
Created: 11 months ago |
Updated: 10 months ago
best des
দেওয়া আছে, a+b=2, ab=1
(a-b)= √[(a+b)2 -4ab]
=> (a-b)=√( 22 - 4*1) (মান বসে)
=>(a-b)=√( 4-4)
=>(a-b)=0
=>a =b
অতএব, a+a =2
=> a=1
এবং b = 2-1=1
সুতরাং (a,b)=(1,1)
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