plzzz solve it also .
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2
i1st page...............................and 2nd page
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nishantmalik1:
haryana
Answered by
2
Hi mate here is ur query..
______________
As we know
a²+ b²= (a+b)²-2ab
here a=a
but b= 1/a
or (a+1/a)²= a²+1(/a)²-2*(1/a)*a
= a²+1/a²-2
=(8+3√7)²+1/(8+3√7)²-2
=(64+63+48√7)+[1/(8+3√7)*{8-3√7/8-3√7}]²
=(64+63+48√7)+[8-3√7/(64-63)]²
As (a+b)(a-b)=a²-b²
= (64+63+48√7)+[64+63-48√7]
=254
____________________
Hope this will help you
______________
As we know
a²+ b²= (a+b)²-2ab
here a=a
but b= 1/a
or (a+1/a)²= a²+1(/a)²-2*(1/a)*a
= a²+1/a²-2
=(8+3√7)²+1/(8+3√7)²-2
=(64+63+48√7)+[1/(8+3√7)*{8-3√7/8-3√7}]²
=(64+63+48√7)+[8-3√7/(64-63)]²
As (a+b)(a-b)=a²-b²
= (64+63+48√7)+[64+63-48√7]
=254
____________________
Hope this will help you
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