Question

Find another angle between 0° and 360° that has the same cosine as 71° and find another angle between 0° and 360° that has the same sine as 71°.

Answer 1

cosine(71) = sine(19)

Step-by-step explanation:

cos(x) = cos(90-y) = sine(y) x<90

cos(71) = cos(90-19) = sine(19)

sine(71) = cosine(19)

Step-by-step explanation:

sin(x) = sin(90-y) = cos(y) x<90

sin(71) = sin(90-19) = cose(19)