1.

(5 - 7)2 × (6 - 9)2 ÷(23)-2 = ?1). -23042). 23043). -23824). 2382

Answer»

SOLVE the given question, using FOLLOWING LAWS of indices,

Laws of Indices,

1-: am × an = a{m + n}

2-: am ÷ an = a{m - n}

3-: [(am)n] = amn

4-: (a)1/m = $(\sqrt[m]{a})$

5-: (a)-m = 1/am

6-: (a)(m/n) = $(\sqrt[n]{{{a^m}}})$

7-: a0 = 1

⇒ (5 - 7)2 × (6 - 9)2 ÷ (23)-2 = ?

⇒ ? = (-2)2 × (-3)2 ÷ (2)-6

⇒ ? = 4 × 9 × 64

⇒ ? = 2304


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