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October 24, 2014

October 24, 2014

Posted by **Matt** on Tuesday, January 31, 2012 at 2:51am.

2cos(x-π/6)=1

- Trig -
**Jai**, Tuesday, January 31, 2012 at 8:22am2cos(x-π/6) = 1

let y = (x-π/6)

cos(y) = 1/2

y = π/3, -π/3

substituting back the value of y,

(x - π/6) = π/3

x = π/2

(x - π/6) = -π/3

x = -π/6 or 11π/12

hope this helps~ :)

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