Lahenda tan20^{circ}+tan72^{circ}+tan88^circ=tan20^circ*tan72^circ*tan88^circ

$$\tan 20 ^ { \circ } + \tan 72 ^ { \circ } + \tan 88 ^ { \circ } = \tan 20 ^ { \circ } \cdot \tan 72 ^ { \circ } \cdot \tan 88 ^ { \circ }$$

Kontrolli

Lahenduse etapid

Evaluate trigonometric functions in the problem

$$0,36397023426620234 + 3,0776835371752527 + 28,636253282915515 = -0,8703214691344587$$

Liitke 0,36397023426620234 ja 3,0776835371752527, et leida 3,44165377144145504.

$$3,44165377144145504+28,636253282915515=-0,8703214691344587$$

Liitke 3,44165377144145504 ja 28,636253282915515, et leida 32,07790705435697004.

$$32,07790705435697004=-0,8703214691344587$$

Võrrelge omavahel 32,07790705435697004 ja -0,8703214691344587.

$$\text{false}$$