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OpenStudy (anonymous):
please take the time to help me answer this! pleaseeeeeeeeeeeeee!!!!!
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OpenStudy (anonymous):
OpenStudy (anonymous):
any luck yall? :(
OpenStudy (anonymous):
Multiply, substitute, solve and check.
OpenStudy (anonymous):
i havent learned this yet foolformath, im going to tutoring later today.. i just need to complete this homework assign before
OpenStudy (anonymous):
anonymous any idea?
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OpenStudy (anonymous):
cosx(14cosx+8)=1 14cos^2x+8cosx-1=0 using quadratic formula: cosx=(-8+sqrt(120))/2 cosx=(-8-sqrt(120))/2 then after simplyfying the RHS, you inverse them, and from each equation you may get two answers
OpenStudy (anonymous):
do you mind finishing solving it for me please?
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