10 Granny Squares 30 Blankets: Color schemes, layouts, and edge finishes for 30 unique looks

10 Granny Squares 30 Blankets: Color schemes, layouts, and edge finishes for 30 unique looks

Matematika Tan 30° + Sin 210° - Tan 45° :

Tan 30° + Sin 210° - Tan 45° :

Jawab:

trigonometri
nilai fungsi
sudut  relasi

nilai
tan 30 + sin210 -  tan45 =

= tan 30 + sin(180+30) -  tan45

= tan 30  - sin 30 -  tan45

[tex]\sf = \frac{1}{\sqrt 3} - \frac{1}{2} - 1[/tex]
[tex]\sf = \frac{1}{3}\sqrt 3} - \frac{3}{2}[/tex]

[tex]\sf = \frac{1}{6}(2\sqrt 3} - 9)[/tex]

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