Dot product is
a*b = |a|*|b|*cosα.
In our case
u*u =|u|*|u|*cos 0
u*u =|u|*|u|
12=|u|²
|u|=√12=√(4*3)=2√3
Answer: <span>D. 2√3</span>
Answer:
f(n) = 1
Step-by-step explanation:
Another answer for -3. FxN= -3
Answer: For the value of w=4,
is a true statement.
Step-by-step explanation:
Since, the given expression,

= 
= 
=
( by subtraction property of equality)
⇒
( By division property of equality)
⇒ w=4 ( By multiplication property of equality)
Answer:
20 :)
Step-by-step explanation: