Question 1049961
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Can a given angle &#945; satisfy both cos &#945; > 0 and sec &#945; < 0? Explain?
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{{{sec(alpha)}}} = {{{1/cos(alpha)}}}, by the definition.


So, if {{{cos(alpha)}}} > {{{0}}}, then {{{sec(alpha)}}} > 0.


And vice versa.
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