Answer:
-i
Step-by-step explanation:
We are to find the value of i^31
Note that i^2 = -1
Expanding i^31
i^31 =
= (i^2)15 * i
= (-1)^15 * i
= -1 * i
= -i
Hence the equivalent is -i
Answer:
Let
a
=
8
and
b
=
8.5
Let the angle between
a
and
b
be
θ
Let the unknown side be
c
As
θ
→
0
,
88
c
→
0.5
As
θ
→
180
∘
,
88
c
→
16.5
So the lenght of side
c
will be in the interval:
0.5
<
c
<
16.6
Step-by-step explanation:
Answer:
The son is 7, the father is 49.
Step-by-step explanation:
This was a guess-and-check process. I knew this answer was correct because 7*7=49, and 49+7=56.
Answer:
0.6944
Step-by-step explanation:
25/36 is 0.6944 in division
6*4. Because Luiz reads 6 times as more which means multiplication. Therefore Luiz reads 24 hours
