Determine the value of \sin ⁡\frac{21\pi }{2} and cos(-1740°)?

AAI ATC Junior Executive 25 Mar 2021 Shift 1 Paper

Question : 65 of 120

Marks: +1, -0

Determine the value of

sin \;⁡\;{21π }/{2}

and cos(-1740°)?

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