Use a calculator to find the function value. Give your answer rounded to seven decimal places, if necessary.
-cos 39° 5' cos 50° 55' - sin 39° 5' sin 50° 55'
A)2
B)-1
C)0
D)1

Question

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The Answer of Use a calculator to find the function value. Give your answer rounded to seven decimal places, if necessary.
-cos 39° 5' cos 50° 55' - sin 39° 5' sin 50° 55'
A)2
B)-1
C)0
D)1

Use a Calculator to Find the Function Value