Mathematics, 13.05.2021 22:00, asamuels216

Show that sin^2 20° + sin^2 40° + sin^2 80° = 3/2

(HINT: 40° = 60° – 20° and 80° = 60° + 20°

Answers: 3

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Show that sin^2 20° + sin^2 40° + sin^2 80° = 3/2

(HINT: 40° = 60° – 20° and 80° = 60° +...