Find values of a and b that make the following equality into identity:

1.

2.

Step-by-step explanation:

1. Given:

To find a and b, add two fractions in right side:

So,

Two fractions with same denominators are equal when they have equal numerators, so

Equate coefficients:

From the second equation:

Substitute it into the first equation:

Hence,

2. Given:

Note that

To find a and b, add two fractions in right side:

So,

Two fractions with same denominators are equal when they have equal numerators, so

Equate coefficients:

From the first equation:

Substitute it into the second equation:

Hence,

this is a very good question

step-by-step explanation:

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