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if A+B+C=270 then cos2A+cos2B+cos3C+cos2C+4sinAsinBsinC=

if A+B+C=270 then cos2A+cos2B+cos3C+cos2C+4sinAsinBsinC=
 

Grade:9

1 Answers

Arun
25750 Points
5 years ago
Dear Om
 
Please check the question as it also contains the term cos 3C. which is unusual.
 
Please check.
 
Regards
Arun

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