Question

the difference of two numbers is 4 and the difference od their reciprocals is 4/21, the numbers are​

Answer 1

Step-by-step explanation:

Let a & b be two numbers

a−b=4

b1−a1=214

aba−b=214

∴ab=21

a−a21=4

a2−4a−21=0

(a−7)(a+3)=0

a=7         a=−3

b=3         b=−7

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