Teaching AWES Army Public School Mock Test Mathematics Trigonometry Trigonometric Functions

The value of cos(- 300°) + sin\(\rm({-2\pi \over 3})\) is

1
\(\rm {1+\sqrt 3\over 2}\)
2
\(\rm {\sqrt 3-1\over 2}\)
3
\(\rm {-1-\sqrt 3\over 2}\)
4
\(\rm {1-\sqrt 3\over 2}\)
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