onlymyworld27
21.02.2020 •
Mathematics
Tan20×tan40 tan60×tan80=3 prove that
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Ответ:
3
Step-by-step explanation:
tan(θ)tan(60−θ)tan(60+θ)=tan(3θ)
tan(20)tan(40)tan(60)tan(80)
(tan(20)tan(60−20)tan(60+20))tan(60)
tan^2(60)
(3–√)2
3
Ответ:
post the question then