if a=2+√3 then find the value of a^2+ 1/a^2.
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Step-by-step explanation:
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Step-by-step explanation:
a=2+√3
a²+1/a²
to find 1/a²
=1/ 2+√3 into 2-√3/2-√3
=2-√3/4-3 =2-√3
1/a²= 2-√3
on putting value
=a²+1/a²
= (2+√3)²+1/(2-√3)²
= 4+3+2√3 +1/ 4+3-2√3
and solve yourself
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