Tan x + 1 = 0
tan x = -1
x = -π/4 + nπ ( n ∈ Z )
Answer:

Step-by-step explanation:
1) Simplify 52 - 42 to 10.

2) Simplify 4 × 10 to 40.

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Answer:
The factors of 10 are 1, 2, 5, and 10.
Translation: Los factores de 10 son 1, 2, 5 y 10.
Step-by-step explanation:
1x10= 10
2x5= 10
BD is a perpendicular bisector of AC, that’s the answer!!!