Find the value of the following polynomial at a = - 2 and b = 3: (a/b) + (b/a)

Solution:

The given polynomial is (a/b) + (b/a)

We have to find the value of the polynomial at a = -2 and b = 3.

a/b = -2/3

b/a = 3/(-2)

Now, (a/b) + (b/a) = (-2/3) + (3/-2)

Taking out negative sign as common,

= -[(2/3) + (3/2)]

By cross multiplication,

= -[(2(2) + 3(3)) / 3(2)]

= -[(4+9)/6]

= -13/6

Therefore, (a/b) + (b/a) = -13/6

✦ Try This: Find the value of the following polynomial at a = -3 and b = 3: (a/b) + (b/a)

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 12

NCERT Exemplar Class 7 Maths Chapter 10 Problem 66 (g)

Find the value of the following polynomial at a = - 2 and b = 3: (a/b) + (b/a)

Summary:

The value of the polynomial (a/b) + (b/a) at a = -2 and b = 3 is -13/6

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