Prove that 1 + tan 2α * tan α = sec 2α
wax0:
is it tan square 2
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0
Answer:
See explanation...
Explanation:
Starting from:
cos
2
(
x
)
+
sin
2
(
x
)
=
1
Divide both sides by
cos
2
(
x
)
to get:
cos
2
(
x
)
cos
2
(
x
)
+
sin
2
(
x
)
cos
2
(
x
)
=
1
cos
2
(
x
)
which simplifies to:
1
+
tan
2
(
x
)
=
sec
2
(
x
)
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