Question

Hey !!!

Find general solution of

tan( x- 1 ) = 7

Answer 1

tan(x-1) = 7
tanx - tan1 / 1 - tanx.tan1 = 7
(tanx - 1.55) / (1 - 1.55*tanx ) = 7

tanx - 1.55 = 7 - 10.85tanx
11.85 tanx = 8.55

tanx = 8.55 / 11.85
tanx = 0.7215

x = tan inverse ( 0.7215)
x = 0.6 +- nπ

Answer 2

Answer is given in the pic.