cos 510° = A.    \(\large\boldsymbol{\frac {1} {2} }\)
B.  \(\large\boldsymbol{-\,\frac {\sqrt 3} {2} }\)
C.  \(\large\boldsymbol{-\,\frac {\sqrt 3} {3} }\)
D.  \(\large\boldsymbol{\frac {\sqrt 3} {2} }\)
E.  \(\large\boldsymbol{-\,\frac {1} {2} }\)
A    B    C    D    E

[ 4-4951 - op net sinds 23.6.09-(E)-30.10.2023 ]

Translation in   E N G L I S H

See above

Oplossing - Solution

cos 510° = cos (510° − 360°) = cos 150°
= − cos (180° − 150°) = − cos 30° = \(- \;\frac {\sqrt 3} {2} \)
gricha