Question

m+1/m =-p then m²+1/m²=? ans should be p²-2 step by step please

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Answer 1

Step-by-step explanation:

$m + \frac{1}{m} = - p$

squaring both sides,

${(m + \frac{1}{m} )}^{2} = {( - p)}^{2} \\ {m}^{2} + {( \frac{1}{m} )}^{2} + 2 \times m \times \frac{1}{m} = { - p}^{2} \\ {m}^{2} + \frac{1}{ {m}^{2} } + 2 = { - p}^{2} \\ {m}^{2} + \frac{1}{ {m}^{2} } = {( - p)}^{2} - 2$

here, we know (-p)² = p².

so we can replace (-p)² with p²

${m}^{2} + \frac{1}{ {m}^{2} } = { p}^{2} - 2$

Answer 2

Answer:

Hope this helps