Question

tan35\cot55+cot78/-tan45
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Answer 1

Answer:

1-cot 78

Step-by-step explanation:

$\frac{ \tan(35) }{ \cot(55) } + \frac{ \cot(78) }{ - \tan(45) } = \frac{\tan(35)}{\tan(35)} + \frac{ \cot(78) }{ - \tan(45) }$

$= 1 + \frac{\cot(78) ) }{ - 1} = 1 - \cot(78)$

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