Use a half-angle identity to find the exact value of sin 3pi/8
2 answers:
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Answer:
answer Z
Step-by-step explanation:
Look for a graph that contains the following zeros: x = 1, x = 2 , x= 3, following the info derived by the binomial factors that the function contains. Also look ate the fact that the function in question has for leading term positive , then this function must go towards plus infinity when x becomes large. This is the case for the graph option Z (the last graph of the group)