Mathematics: Prove the identity: cos(x-y)/cos x sin y = cot y + tan x

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13.01.2023 13:52

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Prove the identity: cos(x-y)/cos x sin y = cot y + tan x

Prove the identity:

cos(x-y)/cos x sin y = cot y + tan x

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orlando19882000

4,4(9 marks)

$\dfrac{\cos(x-y)}{\cos x\sin y}=\dfrac{\cos x\cos y+\sin x\sin y}{\cos x\sin y}=\dfrac{\cos y}{\sin y}+\dfrac{\sin x}{\cos x}=\cot y+\tan x$

franklinkaylieg1145

5,0(40 marks)

The answer is 3 and 4

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Prove the identity: cos(x-y)/cos x sin y = cot y + tan x

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