Question

If cosx is approximately 0.9511, what is the measurement of x to the nearest degree? Approximately, what is the sin of the angle that is complementary to x?

Answer 1

x ~ 0, sinx ~ 0

Answer 2

means cos x = 0.9511
right
then u can use scientific calculator to find the value in degrees by
cos x = 0.9511
x = cos ^-1 0.9511

Answer 3

should automatically be 0.9511
complementary angles add up to 90
cos x = sin (90 - x)