Find all solutions using exact values tan4 x 1Solutiongiven

Find all solutions, using exact values tan4 x = 1

given tan4x = 1

4x =n +(/4) where n is an integer

x =(n/4) +(/16) where n is an integer

x =(1/16)[4n +] where n is an integer

x =(1/16)(4n+1) where n is an integer

=========================

if question is tan⁴x=1

=>tanx =-1 ,tanx =1

x=(n/2) -(/4) where n is integer