Simplify and select the equivalent expressions — task. Mathematics State Board, Class 10.

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1.

$\frac{5 \ + \ 5\sin α}{\cos α}$

$=$

$5(\sec α + \tan α)$
$5(\cos α + \tan α)$
$5(\cos α - \cot α)$

2.

$(\sec α + \tan α)( 1 - \sin α)$

$=$

$\cos α$
$\sin α$
$\tan α$

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