#4
log_27_(9) = 2/3
log_32_(8) = 3/5
log_4_(32) = 5/2
log_9_(27) = 3/2
log_9_(729) = 3
log_19_(361) = 2
#5
1) log_5_(v5) = 1/2
2)log_2_(1/2) = -1
3)log_3_(v3) = 1/2
4)log_5_(1/5) = -1
5)log_5_(v125) = 3/2
6)log_2_(1/16) = -4
7)log_3_(v27) = 3/2
8)log_3_(1/9) = -2
9)log_7_(v49) = 1
10)log_11_(1/121) = -1
11)log_25_(v625) = 2
12) log_1/2_(8) = -3
#4
log_27_(9) = 2/3
log_32_(8) = 3/5
log_4_(32) = 5/2
log_9_(27) = 3/2
log_9_(729) = 3
log_19_(361) = 2
#5
1) log_5_(v5) = 1/2
2)log_2_(1/2) = -1
3)log_3_(v3) = 1/2
4)log_5_(1/5) = -1
5)log_5_(v125) = 3/2
6)log_2_(1/16) = -4
7)log_3_(v27) = 3/2
8)log_3_(1/9) = -2
9)log_7_(v49) = 1
10)log_11_(1/121) = -1
11)log_25_(v625) = 2
12) log_1/2_(8) = -3