# How do you solve #tanx + secx = 1#?

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Nghi N.
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May 21, 2015

sin x - cos x = -1. Call a whose tan is tan a = 1 = tan pi/4

sin x -(sin a/cos a) sin x = -1

a.

b.

Check with equation (1)

x = 0 --> sin x + 1 = cos x --> 0 + 1 = 1 . OK

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