Evaluate
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Quiz
Trigonometry
5 problems similar to:
{ \left( \pi -2019 \right) }^{ 0 } -2 \cos ( 60 ^ { \circ } ) =
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1-2\cos(60)
Calculate \pi -2019 to the power of 0 and get 1.
1-2\times \frac{1}{2}
Get the value of \cos(60) from trigonometric values table.
1-1
Multiply 2 and \frac{1}{2} to get 1.
0
Subtract 1 from 1 to get 0.
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