3244207
Description
Quiz by wagner sanchez, updated more than 1 year ago
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Created by wagner sanchez
over 8 years ago
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Question 1
Question
Calcular (tg135-tg143)/(tg143 . tg135)
Answer
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2/3
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-1/3
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3/4
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-2/3
Question 2
Question
calcular (ctg49π/45)/(csc41π/45) + cos(41π/45)/ctg(49π/45).
Answer
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23/4
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17/25
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25/17
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5/7
Question 3
Question
calcular ( 2tg(180-a)+ 5ctg(270-a))/(tg(360-a) +2 ctg(90+a))
Answer
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2
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-2
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-1
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1
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0
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