化简 arcos(cos(0.4))

解答

化简

a r cos (cos (0.4))

0.60497 \dots a r

求解步骤

a r cos (cos (0.4))

化简

cos (0.4) : 0.92106 \dots

= cos (0.92106 \dots) a r

化简

cos (0.92106 \dots) : 0.60497 \dots

= 0.60497 \dots a r

e x p an d x (x - 9)

s im pl i f y - 3 (3 a)^{2} + 9

f a c t or 16 y^{2} - 1

s im pl i f y \frac{8 x}{8}

s im pl i f y 3 n^{5} \cdot 5 n^{10}