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Nicolae Coculescu
2004 Nicolae Coculescu
2
trigonometric and ln equation
trigonometric and ln equation
Source:
December 14, 2019
quadratics
monotony
equations
algebra
trigonometry
logarithms
Problem Statement
Solve in the real numbers the equation:
cos
2
(
x
−
2
)
π
4
+
cos
(
x
−
2
)
π
3
=
log
3
(
x
2
−
4
x
+
6
)
\cos^2 \frac{(x-2)\pi }{4} +\cos\frac{(x-2)\pi }{3} =\log_3 (x^2-4x+6)
cos
2
4
(
x
−
2
)
π
+
cos
3
(
x
−
2
)
π
=
lo
g
3
(
x
2
−
4
x
+
6
)
Gheorghe Mihai
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