7*sin(30)/sin(45) eching

$$\frac{ 7 \times \sin ( 30 ) }{ \sin ( 45 ) }$$

Baholash

$$\frac{7\sqrt{2}}{2}\approx 4,949747468$$

Yechim qadamlari

Trigonometrik qiymatlar jadvaldan \sin(30) qiymatini oling.

$$\frac{7\times \frac{1}{2}}{\sin(45)}$$

\frac{7}{2} hosil qilish uchun 7 va \frac{1}{2} ni ko'paytirish.

$$\frac{\frac{7}{2}}{\sin(45)}$$

Trigonometrik qiymatlar jadvaldan \sin(45) qiymatini oling.

$$\frac{\frac{7}{2}}{\frac{\sqrt{2}}{2}}$$

\frac{7}{2} ni \frac{\sqrt{2}}{2} ga bo'lish \frac{7}{2} ga k'paytirish \frac{\sqrt{2}}{2} ga qaytarish.

$$\frac{7\times 2}{2\sqrt{2}}$$

Surat va maxrajdagi ikkala 2 ni qisqartiring.

$$\frac{7}{\sqrt{2}}$$

\frac{7}{\sqrt{2}} maxrajini \sqrt{2} orqali surat va maxrajini koʻpaytirish orqali ratsionallashtiring.

$$\frac{7\sqrt{2}}{\left(\sqrt{2}\right)^{2}}$$

\sqrt{2} kvadrati – 2.

$$\frac{7\sqrt{2}}{2}$$