Answer: 4,50,000 or 63
Step-by-step explanation: I add
Answer: All of thé above
Step-by-step explanation:
is in quadrant I, so .
is in quadrant II, so .
Recall that for any angle ,
Then with the conditions determined above, we get
and
Now recall the compound angle formulas:
as well as the definition of tangent:
Then
1.
2.
3.
4.
5.
6.
7. A bit more work required here. Recall the half-angle identities:
Because is in quadrant II, we know that is in quadrant I. Specifically, we know , so . In this quadrant, we have , so
8.
The answer is B) 0 miles. Because displacement is the shortest distance between starting point and ending point. Since, his starting point and ending point is the same, hence, his displacement is 0 miles.