C4 trig missing solution

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There are two solns and I can only find 1. No idea where the other is coming from

Thx

Original post by hi-zen-berg

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There are two solns and I can only find 1. No idea where the other is coming from

Thx

The range given is for x only. Hence for values of 2x the range is 0<2x< 360. Hence second solution is obtained from 360-160 (your principal value)

Original post by Midgeymoo17

The range given is for x only. Hence for values of 2x the range is 0<2x< 360. Hence second solution is obtained from 360-160 (your principal value)

ohh of course okay thanks

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