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

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

Verify

Solution Steps

Evaluate trigonometric functions in the problem

$$0.36397023426620234 + 3.0776835371752527 + 28.636253282915515 = -0.8703214691344587$$

Add 0.36397023426620234 and 3.0776835371752527 to get 3.44165377144145504.

$$3.44165377144145504+28.636253282915515=-0.8703214691344587$$

Add 3.44165377144145504 and 28.636253282915515 to get 32.07790705435697004.

$$32.07790705435697004=-0.8703214691344587$$

Compare 32.07790705435697004 and -0.8703214691344587.

$$\text{false}$$