pls answer the attached Q..
☹️☹️..
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subhsamavartj:
pla mark as brainliest
pla
plz it took a lot of time
yes , sure I will
but you havent marked
pls mark
I have not got the option to mark
i can mark only after the anyone else gives the answer
Answers
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Step-by-step explanation:
Multiplyboth sides by (1-cosA)(1-cosB)(1-cosC).
It makes both the sides (1-cosA)²(1-cosB)²(1-cosC)²=sin²Asin²Bsin²C
So ,
(1-cosA)(1-cosB)(1-cosC)-sinAsinBsinC=0
or
(1-cosA)(1-cosB)(1-cosC)+sinAsinBsinC=0.
Hence proved
hope it will be helpful to you
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