Whakaoti i te 80^circcos50^circ+sin80^circsin50

$$80 ^ { \circ } \cos 50 ^ { \circ } + \sin 80 ^ { \circ } \sin 50$$

Aromātai

$$52.177415281658640906398030483424$$

Ngā Upane Otinga

Evaluate trigonometric functions in the problem

$$80 \cdot 0.6427876096865394 + 0.984807753012208 \cdot 0.766044443118978$$

Whakareatia te 80 ki te 0.6427876096865394, ka 51.423008774923152.

$$51.423008774923152+0.984807753012208\times 0.766044443118978$$

Whakareatia te 0.984807753012208 ki te 0.766044443118978, ka 0.754406506735488906398030483424.

$$51.423008774923152+0.754406506735488906398030483424$$

Tāpirihia te 51.423008774923152 ki te 0.754406506735488906398030483424, ka 52.177415281658640906398030483424.

$$52.177415281658640906398030483424$$

Tauwehe

$$\frac{11 \cdot 239 \cdot 516277 \cdot 1632677203 \cdot 81755387477 \cdot 3 ^ {2}}{2 ^ {25} \cdot 5 ^ {30}} = 52\frac{5.544227551832483 \times 10^{27}}{3.125 \times 10^{28}} = 52.17741528165864$$