What is (4cos(x+180)-4)-8 ?

The solution to (4cos(x+180)-4)-8 is -4cos(x)-12

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simplify (4cos(x+180)-4)-8

simplify

(4 cos (x + 18 0^{\circ}) - 4) - 8

- 4 cos (x) - 12

Solution steps

(4 cos (x + 18 0^{\circ}) - 4) - 8

Rewrite using trig identities

= 4 (- cos (x)) - 4 - 8

Simplify

4 (- cos (x)) - 4 - 8 : - 4 cos (x) - 12

= - 4 cos (x) - 12

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