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1. Prove that 2 tan x / 2- sec^2 x = tan 2x.

1. Prove that 2 tan x / 2- sec^2 x = tan 2x.
asked 92.2k views
4 votes
1. Prove that

2 tan x / 2- sec^2 x = tan 2x.

1. Prove that 2 tan x / 2- sec^2 x = tan 2x.-example-1
asked
User Shuriquen
by
8.4k points

1 Answer

3 votes

Answer:

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

answered
User Kacey Ezerioha
by
8.4k points
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