Recent activity by Ccnokes

Recent activity by Ccnokes

Hey guys please help? Trigonometry So, the task is: find cos a, if: 1) sin a = (3√11)/10, a ∈ (0; π/2) 2) sin a = (3√11)/10, a ∈ (π/2; π) Could someone please explain how to solve it? I can't figure out

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1 answer 51.0k views

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1 answer 70.1k views

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1 answer 213k views

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1 answer 235k views

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2 answers 186k views

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1 answer 121k views

...........helppppppppp

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1 answer 45.9k views

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1 answer 166k views

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