Find the exact value of cos(arcsin(1/ for full credit, explain your reasoning.

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Answer
The correct answer was given: Raniel
First wayarcsin(1/4) means that 1/4 sin of the angle.sin(α)=1/4sin²α+cos²α=1(1/4)²+cos²α=1cos²α=1-1/16 =15/16cosα=+/-(√15)/4second waysin(α)=1/4 =opposite leg/hipotenusecos(α)=adjacent leg/hypothenuseadjacent leg =√(hypotenuse²- opposite²)=√(16-1)=√15cosα=+/-√15/4for one value of sinα, possible 2 values of cosα.

Answer
The correct answer was given: Brain
The answer would be A. 1 1/5

48/40 = 1 8/40

1 8/40 Simplify to 1 1/5

Hope this helps! 

Answer
The correct answer was given: Brain
I believe it is 60-10=x because it says she purchased it with 60$ but recieved 10$ in change causing the amount we dont know to be a variable such as “x”

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