Answer:
tan=5,5
sin=0,98
Sry when Its wrong
sin• = √13/7
tan•= -√13/4
Explanation:
sin2•+ cos2• = 1
sin• = √1-cos2•
sin•= √1-(-4/7)2
sin•= √1-16/49
sin•= √ 49-16/49
sin•= √ 13/ 49
sin•= √13/7
tan• = sin•\cos•
= √13/7/-4/7
= -√13/4
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