ABC is a triangle inscribed in a semicircle of diameter AB. What is co – McqOptions

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1.	ABC is a triangle inscribed in a semicircle of diameter AB. What is cos(A+B) + sin(A + B) equal to ?
A.	0
B.	\(\frac{1}{4}\)
C.	\(\frac{1}{2}\)
D.	1
Answer» E.

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