1. If A+B+C=180
prove that.
cosA/sinBsinC + cosB/sinCsinA + cosC/sinAsinB =2
HELP PLEASE...
Mathematics, 11.12.2020 07:00 BaileyRyan8320
1. If A+B+C=180
prove that.
cosA/sinBsinC + cosB/sinCsinA + cosC/sinAsinB =2
HELP PLEASE
Answers: 1
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