$< 4,9 > $
Work Step by Step
$ < a,b > + < c,d > = < \left( a+b\right) ,\left( c+d\right) > \Rightarrow $ $< -3,5 > + < 7,4 > = < \left( -3+7\right) ,\left( 5+4\right) > = < 4,9 > $
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.