Question

find the value of tan 1080

Answer 1

Subtract 360°360° from 1080°1080°.

A=1080°−360°A=1080°-360°

The resulting angle of 720° is positive and coterminal with 1080 but isn't less than 360°. Repeat the step.

A=720°A=720°

Subtract 360°360° from 720°720°.

A=720°−360°A=720°-360°

The resulting angle of 360°360° is positive, less than 360°360°, and coterminal with 1080

A=360°A=360°

Find the value using the definition of tangent.

tan(360)=opposite/adjacent

Substitute the values into the definition.

tan(360)=0÷1

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