Simplify the value of $$1-\frac{1}{1+\sqrt{2}}+\frac{1}{1-\sqrt{2}}$$ is
Expression : $$1-\frac{1}{1+\sqrt{2}}+\frac{1}{1-\sqrt{2}}$$
=Â $$\frac{(1+\sqrt{2})(1-\sqrt{2})-(1-\sqrt{2})+(1+\sqrt{2})}{(1+\sqrt{2})(1-\sqrt{2})}$$
= $$\frac{(1-2)+(2\sqrt{2})}{1-2}=\frac{2\sqrt{2}-1}{-1}$$
= $$1-2\sqrt{2}$$
=> Ans - (B)
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