Answer :
Answer:
D.The angle between the two vectors must be an acute angle which is less than 90 degrees.
Step-by-step explanation:
We are given that two vectors A and B are added together to form a vector C.
The relationship between the magnitudes of the vectors is given by [tex]a^2+b^2 >c^2[/tex]
We have to find which statement is true about given vectors.
We know that if a triangle is an obtuse triangle then
[tex]c^2 >a^2+b^2[/tex]
If a triangle is an acute triangle then
[tex]a^2+b^2 >c^2[/tex]
If a triangle is right angle triangle then
[tex]c^2=a^2+b^2[/tex]
Therefore,the angle between the two vectors must be an acute angle which is less than 90 degrees.
Option D is true.