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شائع علم المثلثات >

(cos(60))/(sin(60))

الحلّ

\frac{cos ( 6 0 ^{\circ} )}{sin ( 6 0 ^{\circ} )}

الحلّ

\frac{3}{3}

+1

عشري

0.57735 \dots

خطوات الحلّ

\frac{cos ( 6 0 ^{\circ} )}{sin ( 6 0 ^{\circ} )}

استخدم المتطابقة الأساسيّة التالية:

cos (6 0^{\circ}) = \frac{1}{2}

cos (6 0^{\circ})

cos (x)

periodicity table with

36 0^{\circ} n

cycle:

x 0 3 0^{\circ} 4 5^{\circ} 6 0^{\circ} 9 0^{\circ} 12 0^{\circ} 13 5^{\circ} 15 0^{\circ} cos (x) 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} x 18 0^{\circ} 21 0^{\circ} 22 5^{\circ} 24 0^{\circ} 27 0^{\circ} 30 0^{\circ} 31 5^{\circ} 33 0^{\circ} cos (x) - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2} 0 \frac{1}{2} \frac{2}{2} \frac{3}{2}

= \frac{1}{2}

استخدم المتطابقة الأساسيّة التالية:

sin (6 0^{\circ}) = \frac{3}{2}

sin (6 0^{\circ})

sin (x)

periodicity table with

36 0^{\circ} n

cycle:

x 0 3 0^{\circ} 4 5^{\circ} 6 0^{\circ} 9 0^{\circ} 12 0^{\circ} 13 5^{\circ} 15 0^{\circ} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} x 18 0^{\circ} 21 0^{\circ} 22 5^{\circ} 24 0^{\circ} 27 0^{\circ} 30 0^{\circ} 31 5^{\circ} 33 0^{\circ} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

= \frac{3}{2}

= \frac{\frac{1}{2}}{\frac{3}{2}}

\frac{\frac{1}{2}}{\frac{3}{2}}

بسّط:

\frac{3}{3}

\frac{\frac{1}{2}}{\frac{3}{2}}

\frac{\frac{a}{b}}{\frac{c}{d}} = \frac{a \cdot d}{b \cdot c}

:اقسم الكسور

= \frac{1 \cdot 2}{2 3}

بسّط

= \frac{2}{2 3}

2 :

إلغ العوامل المشتركة

= \frac{1}{3}

\frac{1}{3}

حوّل لصيغة عدد كسريّ:

\frac{3}{3}

\frac{1}{3}

\frac{3}{3}

اضرب بالمرافق

= \frac{1 \cdot 3}{3 3}

1 \cdot 3 = 3

33 = 3

33

a a = a

:فعْل قانون الجذور

33 = 3

= 3

= \frac{3}{3}

= \frac{3}{3}

= \frac{3}{3}

أمثلة شائعة

(sin(50)+sin(10))/(cos(50)+cos(10))

\frac{sin ( 5 0 ^{\circ} ) + sin ( 1 0 ^{\circ} )}{cos ( 5 0 ^{\circ} ) + cos ( 1 0 ^{\circ} )}

arccos(cos(43))

arccos (cos (4 3^{\circ}))

csc (\frac{- 7 π}{6})

5 cos (1)

e^1cos(1)-e^1sin(1)

e^{1} cos (1) - e^{1} sin (1)