Question
If {p2 + (2p2/5)} = 14p , p ≠ 0,
then find the value of {p2 + (10/p) - 1}.Solution
ATQ, Given, p2 + (2p2 /5) = 14p Or, 5p2 + 2p2 = 70p Or, 7p2 = 70 Or, p2 – 10 = 0 Or, p(p – 10) = 0 So, p = 0 or 10 So, p = 10 (Since, ‘p’ can’t be zero) So, {p2 + (10/p) – 1} = {100 + 1 – 1} = 100
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