Предмет: Геометрия, автор: olensol242

Зробіть хто може! ❤️❤️❤️

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Ответы

Автор ответа: Аноним

1

Ответ:

cosβ=5/13

tgβ=12/5

Объяснение:

sin²β+cos²β=1

cosβ=√(1-sin²β)=√(169/169-144/169)=

=√(25/169)=5/13

tgβ=sinβ/cosβ=12/13:5/13=12/13*13/5=12/5

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