Surds and Indices Practice Test 2

Question : 2 of 17

Marks: +1, -0

1/{1+a^{n-m}}+1/{1+a^{m-n}}=?

Solution:

1/{1+a^{n-m}}+1/{1+a^{m-n}}

=1/{1+a^{n }/a^m}+1/{1+a^{m }/a^n}

={a^m+a^n}/{a^m+a^n}=1

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