1+(1/2)−1+(1/3)−1+(1/4)−1=?1+(1/2)^{-1}+(1/3)^{-1}+(1/4)^{-1}=?1+(1/2)−1+(1/3)−1+(1/4)−1=? A16B14C12D10Answer: D. 10 Read Explanation: 1+(1/2)−1+(1/3)−1+(1/4)−11+(1/2)^{-1}+(1/3)^{-1}+(1/4)^{-1}1+(1/2)−1+(1/3)−1+(1/4)−1=1+1/(2−1)+1/(3−1)+1/(4−1)=1+1/(2^{-1})+1/(3^{-1})+1/(4^{-1})=1+1/(2−1)+1/(3−1)+1/(4−1)=1+21+31+41=1+2^1+3^1+4^1=1+21+31+41=1+2+3+4=1+2+3+4=1+2+3+4=10=10=10 Read more in App
