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3x23^{x-2} = 1 എങ്കിൽ x ന്റെ വിലയെന്ത് ?

A0

B1

C2

D3

Answer:

C. 2

Read Explanation:

3x2=13^{x-2}=1

axn=axan\because{a^{x-n}}=\frac{a^x}{a^n}

3x32=1\frac{3^x}{3^2}=1

3x=1×323^x=1\times3^2

3x=93^x=9

ax=an    x=na^x=a^n\implies{x=n}

x=2x=2


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(343)2/3(-343)^{2/3}എന്നതിന്റെ മൂല്യം എത്ര 

(1258)2/3(16625)1/2=(\frac{125}{8})^{2/3}(\frac{16}{625})^{1/2}=