Question

tan^-1(1)
+
tan^-1 (2) + tan^-1(3)​

Answer 1

Answer: 180

Step-by-step explanation:

Tan^-1(1)  +  tan^-1 (2) + tan^-1(3)​

Tan^-1(1)  = 45     tan^-1 (2) = 63.43    tan^-1(3) = 71.56

=180.3

to the nearest 1dp = 180