Question

for medal: when solving 2cos(-1) sin(-1)^2, is the mode Degree or Radian on the calculator?

Answer 1

Radian, due to -1 degrees not making much sense.

Answer 2

so there is such a thing as -1 rad?

Answer 3

mt math teacher told me to use degree mode when solving sinx=-1/4, and i'm wondering if i should also use degree mode in the question above

Answer 4

Preference, degrees are easier, radians will give you the answer in n/pi rads

Answer 5

If your teacher wants you to use degrees, use degrees.