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15). Log log x = Log (4 -Log x) + 1 , bil pokok = 3
Log Log x = Log (4-Log x) + Log 3
= Log 3(4 - Log x)
coret Log
Log x = 3 (4 - Log x)
= 12 - 3 Log x
Log x + 3 Log x = 12
4 Log x = 12
Log x = 12/4
= 3
Log x = log 3^3
x = 3^3
= 27
P = { -2, -1, 0, 1, 2 }
Q = { 2, 3, 5, 7, 11, 13, 17, 19 }
R = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }
Q R - P = { 2, 3, 5, 7 } - { 2 }
= { 3, 5, 7 }