sin45^circ-sin30^circ+cos60^circ eching

$$\sin 45 ^ { \circ } - \sin 30 ^ { \circ } + \cos 60 ^ { \circ }$$

Baholash

$$\frac{\sqrt{2}}{2}\approx 0,707106781$$

Qisqa yechim qadamlari

Trigonometrik qiymatlar jadvaldan \sin(45) qiymatini oling.

$$\frac{\sqrt{2}}{2}-\sin(30)+\cos(60)$$

Trigonometrik qiymatlar jadvaldan \sin(30) qiymatini oling.

$$\frac{\sqrt{2}}{2}-\frac{1}{2}+\cos(60)$$

\frac{\sqrt{2}}{2} va \frac{1}{2} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{\sqrt{2}-1}{2}+\cos(60)$$

Trigonometrik qiymatlar jadvaldan \cos(60) qiymatini oling.

$$\frac{\sqrt{2}-1}{2}+\frac{1}{2}$$

\frac{\sqrt{2}-1}{2} va \frac{1}{2} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$\frac{\sqrt{2}-1+1}{2}$$

\sqrt{2}-1+1 hisob-kitobini qiling.

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