Math, asked by apriyagakingh, 1 year ago

If a = 7 - 4 root 3 , find the value of root a +1/ root a .

Answers

Answered by mysticd

6

a=7-4 root3---(1)

1/a=1/(7-4 root3)=(7+4root3)/((7-4root3)(7+4root3)
1/4root3----(2)
a+1/a=7-4root3+7+4root3
=14

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