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Answer:
<em>The</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>1</em><em>1</em><em>.</em>
<em>by</em><em> </em><em>using</em><em> </em><em>cosine rule</em><em> </em><em>we</em><em> </em><em>can</em><em> </em><em>easily</em><em> </em><em>get</em><em> </em><em>the</em><em> </em><em>answer </em><em>of</em><em> </em><em>this</em><em> </em><em>question</em><em>. </em>
<em><u>I</u></em><em><u> </u></em><em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>help u</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
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Finding
If you're having problems understanding this answer, try seeing it through your browser: <span>brainly.com/question/2159647
</span>I hope this helps.
Tags: <em>complex number additive inverse opposite algebra</em>