Question

12. (-13) 4÷(-13)-3 का मान ज्ञात कीजिए। {आ ) (स)-13 (ब) - 1 13 द013 13​

Answer 1

(-13) 4÷(-13)-3

-13×4 ÷(-13)×3

-52÷39

= -1.3333....

Answer 2

उतर :-

→ (-13)^4 ÷ (-13)^(-3)

x^m ÷ x^n = x^(m - n) का प्रयोग करने पर,

→ (-13)^{4 - (-3)}

→ (-13)^(4 + 3)

→ (-13)⁷ (Ans.)

अतरिक्त जानकारी :-

→ x^1 = x

→ x^0 = 1

→ x^(-1) = 1/x

→ x^m*x^n = x^(m+n)

→ x^m/x^n = x^(m-n)

→ (x^m)^n = x^(mn)

→ (xy)^n = x^n*y^n

→ (x/y)^n = x^n/y^n

→ x^(-n) = (1/x)^n

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