Question

find the values of
sin690°​

Answer 1

Answer:

sin690∘ = sin(720∘ − 30∘), = sin(4π − π/6) . But, sin(4π − θ) = −sinθ . ∴ sin690∘ = −sin30∘ = −1/2 .

Step-by-step explanation:

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Answer 2

Answer:

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