Leysa 80^circcos50^circ+sin80^circsin50

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

Meta

$$52.177415281658640906398030483424$$

Lausnarskref

Evaluate trigonometric functions in the problem

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

Margfaldaðu 80 og 0.6427876096865394 til að fá út 51.423008774923152.

$$51.423008774923152+0.984807753012208\times 0.766044443118978$$

Margfaldaðu 0.984807753012208 og 0.766044443118978 til að fá út 0.754406506735488906398030483424.

$$51.423008774923152+0.754406506735488906398030483424$$

Leggðu saman 51.423008774923152 og 0.754406506735488906398030483424 til að fá 52.177415281658640906398030483424.

$$52.177415281658640906398030483424$$

Stuðull

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