Vectors help asap
Hi, please could someone help with this maths question:
In the triangle ABC, AB=7i+3j, AC=5i-4j.
a. Find the angle between AB and i.
b. Find the angle between AC and i.
c. Hence, find the size of angle BAC on degrees to 1 decimal place
In the triangle ABC, AB=7i+3j, AC=5i-4j.
a. Find the angle between AB and i.
b. Find the angle between AC and i.
c. Hence, find the size of angle BAC on degrees to 1 decimal place
Original post by itz_ebony_2023
Hi, please could someone help with this maths question:
In the triangle ABC, AB=7i+3j, AC=5i-4j.
a. Find the angle between AB and i.
b. Find the angle between AC and i.
c. Hence, find the size of angle BAC on degrees to 1 decimal place
In the triangle ABC, AB=7i+3j, AC=5i-4j.
a. Find the angle between AB and i.
b. Find the angle between AC and i.
c. Hence, find the size of angle BAC on degrees to 1 decimal place
I presume youve sketched it and marked on the right triangles to calc the stuff asked for? Upload what youve tried if you still have a problem.
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