SOLUTION: Evaluate: (A.) Arccos(square root of 2/2) (B.) Cos [ Arcsin (-4/5)]

Algebra ->  Formulas -> SOLUTION: Evaluate: (A.) Arccos(square root of 2/2) (B.) Cos [ Arcsin (-4/5)]      Log On


   

Question 67001This question is from textbook Advanced mathematics
: Evaluate:
(A.)
Arccos(square root of 2/2)
(B.)
Cos [ Arcsin (-4/5)] This question is from textbook Advanced mathematics

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Evaluate:
(A.)
Arccos(square root of 2/2)= 45 degrees
(B.)
Cos [ Arcsin (-4/5)]= 0.6
I did these with a calculator. Let me know if you
need to understand how to do them without a calculator.
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Cheers,
Stan H.