if a = 2+√3, find a+1/a
Answers
Answered by
1
Given that,
a=2+
3
Then, Value of
a−
a
1
=2+
3
−
2+
3
1
=2+
3
−
2+
3
1
×
2−
3
2−
3
onrationalize
=2+
3
−
4−3
(2−
3
)
=2+
3
−2+
3
=2
3
Hence, this is the answer
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Answered by
1
given that,
a= 2+√3
then value of,
a-1/a= 2+√3-1/2+√3
= 2+√3-1/2+√3
= 2-√3/2-√3 on retionalize
= 2+√3-(2-√3)/4-3
=2+√3-2+√3
= 2√3.
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