求下列不定积分:∫[(2x-1+5x-1)/10x]dx

求下列不定积分:∫[(2x-1+5x-1)/10x]dx
【正确答案】:∫[(2x-1+5x-1)/10x]dx=∫[1/2(1/5)x+1/5(1/2)x]dx=-[1/2ln5(1/5)x]-[1/5ln2(1/2)x]+c.