3 years ago

How does sec(x)-1/tan(x) + tan(x)/sec(x)+1 = 2sin(x)/1+cos(x)

Mathematics

1 answer:

vlabodo [156]3 years ago

6 0

Answer in the attachment.

Used:

$\sec x=\dfrac{1}{\cos x}\\\\\tan x=\dfrac{\sin x}{\cos x}\\\\\sin^2x+\cos^2x=1\to\sin^2x=1-\cos^2x$

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