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20-02-2017
Mathematics

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If sin(6m-8) = cos (2m), find the value of m.

Respuesta :

20-02-2017

We believe that the angles are in quadrant 1.

sin(6m-8) = cos (2m)

⇒ 6m-8 = 90 - 2m

6m + 2m = 90 + 8

8m = 98

m = 98 / 8 = 12.25

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