6 Trigonometric Function mixed together

Geometry Level 5

Find the minimum value of ∣ sin ⁡ x + cos ⁡ x + tan ⁡ x + csc ⁡ x + sec ⁡ x + cot ⁡ x ∣ \left| \sin { x } +\cos { x } +\tan { x } +\csc { x } +\sec { x } +\cot { x } \right| for any real value of x x .


The answer is 1.828.

Choi Chakfung by choi chakfung , 28, Hong Kong

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Choi Chakfung
May 13, 2016

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