Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Appendix A - Equations and Inequalities - Page 420: 44



Work Step by Step

According to the square root property, if $x^{2}=121$ then $x=\sqrt (121)=11$ or $x=-\sqrt (121)=-11$ Therefore, the solution set is {$-11,+11$} or {$\pm11$}
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