$(14\%)$ Problem $3$: Consider the two vectors, A $=-3\mathrm{.}95$i $+-2\mathrm{.}8$j and B $=-1\mathrm{.}07$i$+-5\mathrm{.}07$j$.$ E V $25\%$ Part $($a$)$ What is the magnitude of C $=$ A $+$ B$?$ ICI $=9\mathrm{.}3$ v Correct! $-$ A $25\%$ Part $($b$)$ What is the direction of C $=$ A $+$ B expressed in degrees above to the negative x axis? Make sure your answer is positive. $25\%$ Part $($c$)$ What is the magnitude of D $=$ A $-$ B$?>$ A $25\%$ Part $($d$)$ What is the direction $-$B expressed in degrees below the negative x axis? Make sure your swer is positiv Grade Summary Op $=0\%$ Deductions Potential $100\%$ Submissions sin$()$ cos$()$ tan$()$ Attempts remaining: $5(0\%$ per attempt$)$ detailed view E $1$A A cotan$()$ asin$()4$ acos$()$ acotan$()$ atan$()$ sinh$()3$ tanh$()$ ODegrees cosh$()$ cotanh$()$ END Radians VO BACKSPACI CLEAR DEL I give up$!$ Submit Hint Feedback Hints: $0\%$ deduction per hint. Hints remaining: $1$ Feedback: $0\%$ deduction per feedback.