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Question Number 144086 by liberty last updated on 21/Jun/21
Ifsint+cost=23thencosect+sect=?
Answered by bobhans last updated on 21/Jun/21
⇔1+2sintcost=49⇒2sintcost=−59⇒sintcost=−518⇔cosect+sect=2/3−5/18=−23.185=−125
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