Q. 73

Find the value of n, where n is an integer and

Answer :





………………….


According to law of indices:


am × bm = (ab)m




Now comparing on both sides


2n-5 = 2-5


n-5 = -5


n = 0


62n-4 = 6-4


2n-4 = -4


2n = -4 + 4


2n = 0


n = 0


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