mia070820
mia070820
24-09-2021
Mathematics
contestada
1. Prove that
2 tan x / 2- sec^2 x = tan 2x.
Respuesta :
yokaikid0911
yokaikid0911
24-09-2021
Answer:
Step-by-step explanation:
Use trig identities:
1
+
tan
2
x
=
1
cos
2
x
=
sec
2
x
(
1
−
tan
x
)
=
1
+
tan
2
x
−
2
tan
x
=
sec
2
x
−
2
tan
x
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