What is the general solution for 7tan(3x)-21tan(x)=0 ?

The general solution for 7tan(3x)-21tan(x)=0 is x=pin

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7tan(3x)-21tan(x)=0

7 tan (3 x) - 21 tan (x) = 0

x = πn

Solution steps

7 tan (3 x) - 21 tan (x) = 0

Rewrite using trig identities

\frac{56 tan ^{3} ( x )}{1 - 3 tan ^{2} ( x )} = 0

Solve by substitution

tan (x) = 0

tan (x) = 0 : x = πn

Combine all the solutions

x = πn

cos (A) = - \frac{3}{25}

tan (a) = \frac{12}{5}

cos (θ) + 2 tan (θ) = sec (θ)

\frac{9 tan ( θ )}{10 - tan ^{2} ( θ )} = 1

tan (x) = \frac{0.45 \cdot cos ( 5 ^{\circ} )}{1 - 0.45 \cdot sin ( 5 ^{\circ} )}

What is the general solution for 7tan(3x)-21tan(x)=0 ?
The general solution for 7tan(3x)-21tan(x)=0 is x=pin