1what id meaning of symbol ∑ and anather symabol like E.
2. If a x =m, ay = n, and a2 =(mynx)z, the find the value of xyz. explain in detail which formula is used.
3. if 3 + (square root 2)/3-(square root 2=a+b( square root 2) , then find a,b. explain in detail which formula is used.
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