Matematik - eksponentiel ligninger

Eksponentielle ligninger 3?·?2,4x = 12?·?0,8x 2,40,8x=123 3x=4 x·ln3x=4 x=ln4ln3=1,26 y=3·2,41,26=9,04 x,y=(1.26,9.04) 15?·?1,3x = 7?·?1,6x 1,61,3x=157 1,23x=2,14 x·ln1,23x=2,14 x=ln2,14ln1,23= 3,69 y=15·1,33,69=39,49 x,y=(3.69, 39.49) 1,5?·?3x = 0,2?·?1,5x 31,5x=1,50,2 2x=7,5 x·ln2x=7,5 x=ln7,5ln2=2,90 y=1,5·32,90=36,28 x,y=(2.90,36.28) 3?·?0,51x = 8?·?0,3x 0,,510,3x=83 1,7x=2,66 x·ln1,7x=2,66 x=ln2,66ln1,7=1,84 y=3·0,511,84=0,86 x,y=(1.84,0.86) 0,25?·?1,74x = 3,71?·?0,22x 1,740,22x=3,710,25 7,90x=14,84 x·7,90x=14,84 x=14,847,90=1,87 y=0,25·1,741,87=0,70 x,y=(1.87,0.70) 4,8?·?0,39x = 50?·?1,20x 1,200,39x=504,8 3,07x=10,41 x·3,07x=10,41 x=10,413,07=3,39 y=4,8·0,393,39=0,19 x,y=(3.39,0,19)