cos (arctan (1))=
arctan (1) = 45 take it to the third quadrant = add 180 = 225
cos (225) = -1 / sqrt(2)
never leave a sqrt in the denominator
= -1 /sqrt(2) * sqrt(2)/sqrt(2)
= -sqrt(2)/2
sin (arccos (1/2)
arccos (1/2) = 60 take it to the 4th quadrant -60 degrees
sin (-60)
- sin 60
- sqrt(3)/2
Answer: Reggie will end up paying $9900 for the car.
Step-by-step explanation:
Down-payment = $1500
48 monthly payments x $175/month = $8400
Total cost = $1500 + $8400 = $9900
The expression would be:
3*8+4
3 times 8 plus 4
