A+B+C=90 PROOF THAT COT A+ COT B +COT C=cotA*cotB*cotC
kiranpanigrahi29:
plz help me
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heya,,,,☺
A+B+C=90°
(A+B)=(90°-C)
cot(A+B)=cot(90°-C)
=)1-cotA*cotB/cotA+cotB=tanC
=)1-cotA*cotB/cotA+cotB=1/cotC
=)cotC-CotA*cotB*cotC= cotA+cotB
=)CotA+CotB+cotC=CotA+cotB+cotC. 【prooved】
hope it help you..
@rajukumar☺☺☺
A+B+C=90°
(A+B)=(90°-C)
cot(A+B)=cot(90°-C)
=)1-cotA*cotB/cotA+cotB=tanC
=)1-cotA*cotB/cotA+cotB=1/cotC
=)cotC-CotA*cotB*cotC= cotA+cotB
=)CotA+CotB+cotC=CotA+cotB+cotC. 【prooved】
hope it help you..
@rajukumar☺☺☺
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