Use reciprocal tables to find the value of f given that 1/f = 1/11 + 2/13
1.1×10−1 =0.9091 × 1/10 =0.09091×1= 0.09091.3×10−1 =0.7692 × 1/10 =0.07692×2=+ 0.1538 1/f = 0.2447 2.447 × 10−1 =0.4086 × 10−1 f=4.086
6.4k questions
9.6k answers
6 comments
590 users