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13 votes
Find the angle between the vectors (-9, -7) and (8. - 4). Carry your intermediate computations to at least 4 decimal places. Round your final answer to thenearest degree

User Wjdp
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1 Answer

22 votes
22 votes

Answer:

To find the angle between the vectors (-9, -7) and (8, - 4).

Step-by-step explanation:

Given corresponding vector points are (-9, -7) and (8,- 4).

we have that,


\vec{a}\vec{.b}=\vec\vec|cos\theta

To find the angle theta.

The given vectors are,


\begin{gathered} \vec{a}=-\vec{9i}-\vec{7j}\text{ } \\ \vec{b}=\vec{8i}-\vec{4j} \end{gathered}

Solving for the required values we get,


\veca|=√(81+49)=√(130)
\vec|=√(64+16)

Also,


undefined

User TobiasMende
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