Question
Asked Nov 6, 2019
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proof trigonometry identities

tan^4(x)-1/(sec^2(x)(tan(x)-1))=tan(x)+1

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Expert Answer

Step 1

Given that

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tan4 x-1 tan x1 ..(1) sec2 x(tanx-1)

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Step 2

To prove the given identity

Step 3

Let

L.H.S

...
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tan x1 sec2 x(tanx -1) (tan' x1) (aa sec2 x(tanx 1)

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Tagged in

Math

Trigonometry

Trigonometric Ratios