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1. If A+B+C=180

prove that.
cosA/sinBsinC + cosB/sinCsinA + cosC/sinAsinB =2
HELP PLEASE ​

1 Answer

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Explanation:

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Look explanation in picture.

Hope it helps....

1. If A+B+C=180 prove that. cosA/sinBsinC + cosB/sinCsinA + cosC/sinAsinB =2 HELP-example-1
1. If A+B+C=180 prove that. cosA/sinBsinC + cosB/sinCsinA + cosC/sinAsinB =2 HELP-example-2
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