Question

Jika log 2 = p dan log 3 = q, maka tentukanlah nilai dari log 72.????

Answer 1

Log 72 = log (2³ x 3²)
         = log 2³ + log 3²
         = 3 log 2 + 2 log 3
         = 3 (p) + 2 (q)
         = 3p + 2q
         

Answer 2

Log 72 = log( 8 x 9)
          =log 8+ log 9=log(2 x 2 x 2)+log(3 x3)
          =2 log 3 + 3 log 2=3p+2q