EAnswers
EAnswers
26-11-2020
Mathematics
contestada
How do I get the fractional form for cos 4π/3?
Respuesta :
beautylong78
beautylong78
26-11-2020
Answer:
[tex] - \frac{1}{2} [/tex]
Step-by-step explanation:
cos
(
π
+
π
3
)
=
cos
π
⋅
cos
(
π
3
)
−
sin
π
⋅
sin
(
π
3
)
=
(
−
1
)
(
1
2
)
−
(
0
)
(
√
3
2
)
=
−
1
2
Answer Link
adrianamidd
adrianamidd
26-11-2020
The answer is -1/2 !!!
Answer Link
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