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moel0jada4ndiW
moel0jada4ndiW moel0jada4ndiW
  • 13-10-2016
  • Mathematics
Answered

Solve

tan x + 1 = 0

for x.

Verified Answer :

HomertheGenius
HomertheGenius HomertheGenius
  • 17-10-2016

tan x  + 1 = 0
tan x + 1 - 1 = 0 - 1
tan x = - 1
We will use the unit circle:
tan ( - 45° ) = - 1
tan ( - π / 4 ) = - 1
Answer:
x = - π / 4 + n π,   n ∈ Z

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