Please help me with a precalc assignment! Given: A. sin(x) B. cos(x) C. cos(y) D. sin(y)

Use the drop-down menus in the derivation of the cosine sum identity:

sin(x + y)

= cos (StartFraction pi Over 2 EndFraction minus (x + y))

= Cosine ((StartFraction pi over 2 EndFraction minus x) minus y)

= Cosine (StartFraction pi Over 2 EndFraction minus x)

✔ C

+ Sine (StartFraction pi Over 2 EndFraction minus x)

A B C D

= sin(x)cos(y) + cos(x)sin(y)

d. because santiago thought any sharks would assume the marlin was part of the boat

a-he encouraged islamic schools to introduce greek texts.

d-he invited greek scholars to teach their texts to the locals.

explanation:

the transmission of the greek classics to latin western europe during the middle ages was a key factor in the development of intellectual life in western europe.[1] interest in greek texts and their availability was scarce in the latin west during the earlier middle ages, but as traffic to the east increased so did western scholarship.

mark brainliest and have a great day!

anxious,the clues in the question suggest he was embarrassed and anxious about boo radley.