Ответ:

Объяснение:

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Verified answer

4) sin (arcctg ( ))

sin (π - arcctg ( ))

sin (π) cos (arcctg ()) - cos (π) sin (arcctg ())

0cos (arcctg ()) - cos (π) sin ( arcctg ( ))

0 + 1sin (arcctg ( ))

sin ( arccot ( ))

1) tg ( arccos ( ))

2) ctg (arcsin )

3) tg (acrsin )

4) tg (arccos ())