Question

explain for 2marks answer

Answer 1

Step-by-step explanation:

∵㏒a , ㏒b , ㏒c are in AP

⇒ ㏒a + ㏒c = 2㏒b

⇒㏒(a×c) = 2㏒b

After further solving you get

ac=√b

⇒(ac)² = b

⇒a,b,c are in GP

Hence shown

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