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Cofunctions

Move the black point and slider. Observe what happens to the values.

How are cos(A) and sin(B) related?

Select all that apply
  • A
  • B
  • C
Check my answer (3)

How are sin(A) and cos(B) related?

Select all that apply
  • A
  • B
  • C
Check my answer (3)

Cofunctions

Sine and cosine are cofunctions: functions that are equal when their inputs are complementary (sum = 90°). Knowing this, which of the following would be equivalent to sin(28°)?

Select all that apply
  • A
  • B
  • C
Check my answer (3)