verify that | a × b | = | a | × | b | a= 2/-5 , b = 3/4
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Answer:
Putting the value a and b, we get
|2/-5×3/4|=|2/-5|×|3/4|
|-3/10|=2/5×3/4
3/10=3/10
therefore, LHS=RHS
Hence, verified
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