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3-1.Vectors
easy
What is correct?
A$| a - b |=| a |-| b |$
B$| a - b | \leq| a |-| b |$
C$| a - b | \geq| a |-| b |$
D$| a - b | > | a |-| b |$
Solution
(c)
$a – b$ is nothing but addition of $a$ and $- b$.
So, the magnitude of $a – b$ will lie between $| a |+| b |$ and $| a |-| b |$
$a – b$ is nothing but addition of $a$ and $- b$.
So, the magnitude of $a – b$ will lie between $| a |+| b |$ and $| a |-| b |$
Standard 11
Physics
