1.

In (0, π), the number of solutions of the equation ​tan x+tan 2x+tan 3x=tanx tan 2x tan 3x is(a) 7(b) 5(c) 4(d) 2.

Answer» In (0, π), the number of solutions of the equation ​tan x+tan 2x+tan 3x=tanx tan 2x tan 3x is

(a) 7

(b) 5

(c) 4

(d) 2.


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