#1133 · Algebra · Exponentials & logarithms

Rationalize the denominator with three terms

Express $\frac{1}{1 + 2 - 3}$ as an equivalent fraction with a rational denominator.

~5 minAnswer checked instantlyrationalizing the denominatorsurds

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. VIII. Surds and Imaginary Quantities, Examples VIII.a, No. 1

Stuck? A gentle nudge

Something off?

Workspace

Your answer

Loading the math keyboard…

Type naturally — sqrt, pi, / and ^ become notation. Any equivalent form is accepted. Press Enter to check.

Checked against the answer in H. S. Hall & S. R. Knight, Higher Algebra (1891).