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cos(x) / ( sec(x) - tan(x) )
<span>= cos(x) / ( 1/cos(x) - sin(x)/cos(x) ) </span>
<span>= cos² (x) / ( 1 - sin(x) ) </span>
<span>= ( 1 - sin² (x) ) / ( 1 - sin(x) ) </span>
<span>= ( 1 - sin(x) ) ( 1 + sin(x) ) / ( 1 - sin(x) ) </span>
<span>= 1 + sin(x)</span>
Answer:
help with what?
Step-by-step explanation:
Answer:
ohh I don't know these kind of questions so I can't help hehe
