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Mathematics 4 Online
OpenStudy (anonymous):

arkababu: find the value of sin35degree sin55degree-cos35degree cos55degree.plss can u kindly show the steps

OpenStudy (shubhamsrg):

expand cos(55 + 35)

OpenStudy (anonymous):

plss tell the full steps

OpenStudy (shubhamsrg):

that was the only step you need to know..

OpenStudy (anonymous):

then what is the answer

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