Math, asked by savitagaikwad167, 1 month ago

if cos a + 2cos b + cos c = 2
then a , b, c are in
a) 2b = a+c
b) b2 =a*c
c) a=b=c
d) none of these

Answers

Answered by kumarsanny52

1

Step-by-step explanation:

put a=b=c=60 then equation will be satisfied

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