Questions
Which of the following is correct?
a
|a-b|=|a|-|b|
b
|a-b|≤|a|-|b|
c
|a-b|≥|a|-|b|
d
|a-b|>|a|-|b|
detailed solution
Correct option is C
(a - b) is nothing but addition of a and -b.|a|=|a-b+b|≤|a-b|+|b|or |a|-|b|≤|a-b|Hence, option (3) is correct.Talk to our academic expert!
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(N-1) identical forces of magnitude F act simultaneously on a particle each making an angle of with the preceding one, the resultant is
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