Q. 9 C4.8( 4 Votes )

# Find the conjugate of each of the following:

Given:

Firstly, we calculate and then find its conjugate

[ (a + b)2 = a2 + b2 + 2ab]

[ i2 = -1]

Now, we rationalize the above by multiplying and divide by the conjugate of 3 – i

…(i)

Now, we know that,

(a + b)(a – b) = (a2 – b2)

So, eq. (i) become

[ i2 = -1]

[ i2 = -1]

Hence,

So, the conjugate of is

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