Answer:
4 Blocks.
Step-by-step explanation:
You start out going 8 east so that's 4.
Then you got 4 north as well so that's 12 because 8 + 4 = 12
then they walk 12 blocks west. Now they are in the position of 4 North and 4 West.
Next they go 4 blocks south. Since they went for blocks North first and now they go 4 blocks south and they are already on the fourth block to the west.
When they are at 4 North and 4 South the just travel to the original position but 4 blocks to the west.
Sorry if you don't understand the explanation. It's kinda difficult to explain.
We will use additional formula:
sin ( 90°+ theta ) = sin 90° * cos(theta) + cos 90° * sin(theta)=
= 1 * cos(theta) + 0 * sin(theta)= cos (theta) It is proved.
Answer:
This variant of a sine function, reduced to an interval where it is monotonous and fills an entire range, has an inverse function called y=arcsin(x) . It has range [−π2,π2] and domain from −1 to 1 .
Step-by-step explanation:
hope that answers ur question :)
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