Solve for A
A=2\sqrt{3}+1\approx 4.464101615
Assign A
A≔2\sqrt{3}+1
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A=\frac{\left(\sqrt{3}+1\right)\left(\sqrt{3}+1\right)}{\left(\sqrt{3}-1\right)\left(\sqrt{3}+1\right)}+\sqrt{3}-1
Rationalize the denominator of \frac{\sqrt{3}+1}{\sqrt{3}-1} by multiplying numerator and denominator by \sqrt{3}+1.
A=\frac{\left(\sqrt{3}+1\right)\left(\sqrt{3}+1\right)}{\left(\sqrt{3}\right)^{2}-1^{2}}+\sqrt{3}-1
Consider \left(\sqrt{3}-1\right)\left(\sqrt{3}+1\right). Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
A=\frac{\left(\sqrt{3}+1\right)\left(\sqrt{3}+1\right)}{3-1}+\sqrt{3}-1
Square \sqrt{3}. Square 1.
A=\frac{\left(\sqrt{3}+1\right)\left(\sqrt{3}+1\right)}{2}+\sqrt{3}-1
Subtract 1 from 3 to get 2.
A=\frac{\left(\sqrt{3}+1\right)^{2}}{2}+\sqrt{3}-1
Multiply \sqrt{3}+1 and \sqrt{3}+1 to get \left(\sqrt{3}+1\right)^{2}.
A=\frac{\left(\sqrt{3}\right)^{2}+2\sqrt{3}+1}{2}+\sqrt{3}-1
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(\sqrt{3}+1\right)^{2}.
A=\frac{3+2\sqrt{3}+1}{2}+\sqrt{3}-1
The square of \sqrt{3} is 3.
A=\frac{4+2\sqrt{3}}{2}+\sqrt{3}-1
Add 3 and 1 to get 4.
A=2+\sqrt{3}+\sqrt{3}-1
Divide each term of 4+2\sqrt{3} by 2 to get 2+\sqrt{3}.
A=2+2\sqrt{3}-1
Combine \sqrt{3} and \sqrt{3} to get 2\sqrt{3}.
A=1+2\sqrt{3}
Subtract 1 from 2 to get 1.
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