What is the general solution for tan(x)=-0.8 ?

The general solution for tan(x)=-0.8 is x=-0.67474…+pin

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tan(x)=-0.8

tan (x) = - 0.8

x = - 0.67474 \dots + πn

Solution steps

tan (x) = - 0.8

Apply trig inverse properties

x = arctan (- 0.8) + πn

Show solutions in decimal form

x = - 0.67474 \dots + πn

cos^{3} (x) - 1 = 0

1.31 sin (3 5^{\circ}) = 2.42 sin (x)

cos (x + 6 0^{\circ}) = \frac{1}{2}

3 cos (θ) = - cos (θ) tan (θ)

cos (2 x) = cos (x) - cos (3 0^{\circ}) [180]

What is the general solution for tan(x)=-0.8 ?
The general solution for tan(x)=-0.8 is x=-0.67474…+pin