Question

If m = 1, n = − 1 and p = 2, find the value of m2n – n

2 + mnp.​

Answer 1

Answer:

m2n-n

1×2×(-1) - (-1)=-1

2+MNP

2+1×(-1)×2=0

Answer 2

If m = 1, n = − 1 and p = 2,

find the value of:

${m}^{2} n - {n}^{2} + mnp$

Answer:

- 4

Step-by-step explanation:

Given :

m = 1

n = -1

p = 2

To find:

${m}^{2} n - {n}^{2} + mnp$

Solution:

Put value of m , n , p in the equation.

${(1)}^{2} ( - 1) - { (- 1)}^{2} + 1 \times ( - 1) \times 2 \\ = 1 \times ( - 1) - (1) + 1 \times ( - 2) \\ = - 1 - 1 - 2 \\ = - 2 - 2 \\ = - 4$

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