Question

(tg 225 - tg 555)*(tg 795+tg 195)

Answer 1

(1-0.268)*(3.727+0.268)=2.92434

Answer 2

To calculate the expression (tg 225 - tg 555) * (tg 795 + tg 195), you can first find the tangent values for the angles 225 degrees, 555 degrees, 795 degrees, and 195 degrees, and then perform the calculations. Keep in mind that "tg" represents the tangent function, and angles are measured in degrees.

1. Calculate the tangent values:

   • tan(225 degrees) = tan(225°) = -1
   • tan(555 degrees) = tan(555°) = -1
   • tan(795 degrees) = tan(795°) = tan(795° - 360°) = tan(435°) ≈ 1.726
   • tan(195 degrees) = tan(195°) = tan(195° - 180°) = tan(15°) ≈ 0.2679

2. Now, plug these values into the expression and calculate: (-1 - (-1)) * (1.726 + 0.2679) = (0) * (1.9939) = 0

So, the result of the expression (tg 225 - tg 555) * (tg 795 + tg 195) is 0.