Answer:
<u>Vague</u> best describes the memories of the places.
Step-by-step explanation:
Vague means:
1.
Well known from long or close association.
"their faces will be familiar to many of you"
2.
In close friendship; intimate.
"she had not realized they were on such familiar terms"
3.
Worthy of attention; striking.
"a remarkable coincidence"
Answer: 7/8
Cos2x has 3 formulas, Sinx is given in the question, we should use the formula with sinus. I guess that's the solution.