Question

if 1/x=7+4✓3 find x square - 1/x square
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Answer 1

Answer:

• 8root3

Step-by-step explanation:

7+4root3 -- (7--4root3)

Answer 2

Answer:

Step-by-step explanation:

1/x=7+4$\sqrt{3}$   so,  after crossmultiplication

x=1/(7+4$\sqrt{3}$)

=(7-4$\sqrt{3}$)/(7+4$\sqrt{3}$)*(7-4$\sqrt{3}$)

=(7-4$\sqrt{3}$)/19

and -1/x=  -7-4$\sqrt{3}$