Question

1. If the sin A = 0.9063, find m ∠A to the nearest degree.

Answer 1

2. If the cos B = 0.9659, find m ∠B to the nearest degree.

Answer 2

if sin A = 0.9063, then you apply the arcsine to both sides to isolate A

Answer 3

@jim_thompson5910 how do you do that?

Answer 4

because arcsine is the inverse of sine

Answer 5

it undoes sine (much like division undoes multiplication)

Answer 6

Answer to A is 64.998, approximately 65 degrees

Answer 7

@jchiang how did you find that?

Answer 8

To find sin^-1(n), ask "What angle has sin equal to n", that's my best explanation

Answer 9

ok so what about #2?

Answer 10

If you have a calculator, you can do cos^-1(0.9659).

Answer 11

k, I need to go do MY homework. :]

Answer 12

ok thanks