Løs 2cos^215^circ

$$2 \cos ^ { 2 } 15 ^ { \circ }$$

Evaluer

$$1,86602540378443869795878416412978$$

Løsningstrinn

Evaluate trigonometric functions in the problem

$$2 \cdot 0,9659258262890683 ^ {2}$$

Regn ut 0,9659258262890683 opphøyd i 2 og få 0,93301270189221934897939208206489.

$$2\times 0,93301270189221934897939208206489$$

Multipliser 2 med 0,93301270189221934897939208206489 for å få 1,86602540378443869795878416412978.

$$1,86602540378443869795878416412978$$

Faktoriser

$$\frac{43 ^ {2} \cdot 3656111 ^ {2} \cdot 61440671 ^ {2}}{2 ^ {31} \cdot 5 ^ {32}} = 1\frac{4,330127018922193 \times 10^{31}}{5,000000000000001 \times 10^{31}} = 1,8660254037844384$$