For the given vectors
and 
The dot product of vectors a and b is defined as = 
So, 

= -16+12
= -4
Answer and Step-by-step explanation:
is pi, or 3.14159
The absolute value of -4 ( |-4| ) is 4.
These numbers should go in this order:
-10 < 0.121212... <
< |-4| < 
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Answer a^3-3a
a^2 times a = a^3 you add exponents