Two vectors m and n are defined by 3i+4j and n=2i-j. find the angle between m and n

Mmounirou asked May 10, 2022

284,774 views

43 votes

Mmounirou asked May 10, 2022

2.8k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

13 votes

Answer:

${ \ttm} \\ { \tt{ (3 * 2) + (4 * - 1) = (5)( √(5)) \cos( \theta) }} \\ { \tt{ \cos( \theta) = (0.4)/( √(5) ) }} \\ \theta = 79.7 \degree$

Pusoy answered May 13, 2022

by Pusoy

3.3k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers