Question

find the value of 4 root of 64 power -2

Answer 1

first of all
write 64 as 1 by 64 inside only
den cut out the root and square.
den the ans will be like dis 4×1 by 64
cut 4 and 64
ans will be obtain

Answer 2

4 √1\64* 64
4√1\8^4
1\8 is the answer