Grade 12Mechanics
If the angle between vector sand b is an acute angle then the difference a_b is
If the angle between vector sand b is an acute angle then the difference a_b is
1 Answer
Arun
Dear student
| a-b |= sqrt (a² +b² - 2 ab cos @)
As @ is acute angle
Henceif @>0 but @
| a-b | > |a| - |b|
& if @ = 0°
|a-b| = |a| - |b|
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