SOLUTION: Evaluate this expression to degrees. arccos(π3/2) A.) {{{ 30 }}} B.) {{{ 45 }}} C.) {{{ 60 }}} D.) {{{ 75 }}}

Algebra ->  Expressions-with-variables -> SOLUTION: Evaluate this expression to degrees. arccos(π3/2) A.) {{{ 30 }}} B.) {{{ 45 }}} C.) {{{ 60 }}} D.) {{{ 75 }}}       Log On


   



Question 1062073: Evaluate this expression to degrees.
arccos(π3/2)
A.) +30+
B.) +45+
C.) +60+
D.) +75+

Found 2 solutions by stanbon, math_helper:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Evaluate this expression to degrees.
arccos(π3/2)
The angle whose cosine is (3pi/2) does not exist
because (3pi/2) = 4.7 and -1<= cos <= 1.
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Please check your posted statement of the problem.
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Cheers,
Stan H.
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A.) +30+
B.) +45+
C.) +60+
D.) +75+

Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!

arccos(x) is only defined if +-1%3C=x%3C=1+
+3pi%2F2+=+4.712389+