class 9 maths number system
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Step-by-step explanation:
√49×7³/7^-6
7×7³/7^-6 (a^m×a^n=a^m+n)
7⁴/7^-6 (a^m÷a^n=a^m-n)
7⁴×7⁶
7¹⁰
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