Q13 of 21 Page 608

Find the general solution of each of the following equations:

tan3 x – 3tan x = 0


To Find: General solution.


Given: tan3 x – 3tan x = 0 tan x(tan2 x – 3) = 0 tan x = 0 or tanx =


tan x = 0 or tanx = tan() or tan x = tan()


Formula used: tan= 0 = n , n I, tan = tan = k , k I


So x = n or x = k + or x = p + where n, k, p I


So general solution is x = n or x = k + or x = p + where n, k, p I


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