What is "C" ?

What is A.C. generator?

What is ""^(n)C_(1)+ ""^(n)C_(2)+……… + ""^(n)C_(n) ?

If U ={1,2,3,4,5,6,7,8,9,10},A={1,3,5,7,9}, B= {2,4,6,8,10} and C= {1,2,3,4} , then : (i) What is U^(c ) ? (ii) What is A^(C) ? (iii) What is AuuA^(c) ? (iv) What is Acap(B-C) ? (v) What is Acap(B-C) ? (vi) What is A-(BuuC) ? (vii) What is A-(BcapC) ? (viii) What is A-(B-C) ? (ix) What is A^(c) ? (x) What is A^(c)uu(B^(c)capC^(c)) ?

What is the C-C bond length in graphite?

What is the C-C bond length (in A^(circ) ) in diamond