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Grade: 11
        
Please answer it in detail formate.
 
Please answer it as soon as possible.
Thankyou.
 
......
one year ago

Answers : (1)

Aditya Gupta
1815 Points
							
(1+a^2)(1+b^2)=  (1+ab)^2 + (b – a)^2
and (1+x^2)(1+y^2)(1+z^2)= (1+xy+yz – xz)^2 + (x+z+xyz – y)^2
note that we have used a basic result due to euler here which states that (u^2+v^2)(r^2+s^2)= (ur – sv)^2+(us+rv)^2
one year ago
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