TG240 = -0.3639702342cos(-810) = 0.08715574274ctg1140 = -0.30381047952
Therefore, TG240 + cos(-810) - ctg1140 = -0.3639702342 + 0.08715574274 - (-0.30381047952) = -0.17330549792.
TG240 = -0.3639702342
cos(-810) = 0.08715574274
ctg1140 = -0.30381047952
Therefore, TG240 + cos(-810) - ctg1140 = -0.3639702342 + 0.08715574274 - (-0.30381047952) = -0.17330549792.