Prévia do material em texto
<p>5 135 2x (i) -D = = log 0,008 25 = 125 = 25 53 2x 154 (b) log ab2 2 3 a by a 3 a- b? = a-</p><p>159 2 at 3 = log + by by 3 a by = by 3 by 2 by log 2 2 by 2 = C log by 4 2 C 184 7. logs loft 2 10</p><p>3 206 a 209 (a) -D (1,0) (3,1) (3,1) 1 1/3 x 3 -1 (1/3,-1) (d) x 0(1,0) 10 (10,-1)</p><p>4 1 (1,0) 1/10 1 10 my (10,-1) 3 2x-170 1/2 = -p = (1,0) 2.5-1 = by 9 x=2 3 2 1 1/2 5</p><p>5 (d) = 2 (1,0) (14) (4,1) (4,1) 1/4 (1,0) n 4 (1/4,-1) 218 (c) X+1 X4170</p><p>6 -4 X2=4 222 (a) (x+2) l 233 (b) D=16</p><p>7 29 D=625 1266 1/2 1/2 1/2 6+14.11 2 2 2 6-54.11 2 2 como X-570 entair</p><p>8 (2x+1) pour 4 12 280 (d) 27x 5x - 3 - y=2</p><p>9 287 2x+6) 2 (2x+1) = (2x+1) 2x+1 D=36 come x-270 325 3n 5'</p><p>10 1/2 331 (g) D=9 V2=2</p><p>347 + 2 X-370 x-270 x73 log D=9 it 4</p>