Answer:
Step 1:
✔ Cofunction identity
Step 5:
✔ Sine difference identity
Step 6:
✔ Cofunction Identity
Step 7:
✔ Cosine function is even, sine function is odd.
Step-by-step explanation:
The answer is B. This is right cause the negatives are to the left and positives up.
3 3/4 divide 2 1/12 = 1.8