Mathematics, 29.07.2020 21:01, ryleerose255

If tanx = 1, and 0< x < 90 degrees, find cos(x/2)? a. $-\frac{\sqrt{2+\sqrt{2} } }{2}$ b. $\frac{\sqrt{2+\sqrt{2} } }{2}$ c. $\frac{\sqrt{2-\sqrt{2} } }{2}$ d. $-\frac{\sqrt{2}-\sqrt{2} }{2}$

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