Հանրահաշիվ Դաս 23

գ) 3log63 + log68 = log633 + log68 = log627 + log68 = log6216 = 3

ա) log915 + log918 — log910
log915 + log918 = log915*18 = log9270
log9270 — log910 = log9270/10 = log927
log927 = log3233 = 1/2 * 3 * log33 = 1 * 1/2 * 3 = 3/2

դ) 2log1/56 — 1/2log1/5400 — 4log1/54√45
log1/562 — log1/54001/2 — log1/54√454
1/2 = √400
log1/536 — log1/520 — log1/545
log1/536/20 = log1/59/5
log1/59/5 — log1/545 = log1/59/5 : 45 = log1/51/25 = log1/52

Թողնել մեկնաբանություն