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gogolik [260]
3 years ago
8

Cot x sec4x = coy x + 2 tan x + tan3x

Mathematics
1 answer:
Fantom [35]3 years ago
7 0

Answer:

Step-by-step explanation:

Simplify RHS

Cotx +2tanx+tan^3x

Cotx/sinx+2(sinx/cosx)+sin^3x/cos^3x

Taking LCM

(cos^4x+2sin^2xcos^2x+sin^4x)/sinx cos^3x

(Cos^2x+sin^2x)^2/sinx cos^3x

(1/sinx cos^3x)

(1/sinx cos^3x)*(cosx/cosx)

Cotx sec^4x

LHS=RHS

Hence proved

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2 years ago
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Answer:

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2 years ago
Eight times a number increased by 6 is 62
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3 years ago
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3 years ago
Lou’s Shoes is having its annual Flag Day Sale and is offering a 25% discount on all regularly priced shoes. Kayla spends $13.50
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