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प्रश्न
If x be any non-zero integer and m, n be negative integers, then xm × xn is equal to ______.
पर्याय
xm
xm+n
xn
xm–n
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उत्तर
If x be any non-zero integer and m, n be negative integers, then xm × xn is equal to xm+n.
Explanation:
Using law of exponents,
am × an = (a)m + n ...[∵ a is non-zero integer]
Similarly, xm × xn = (x)m + n
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