Q. 9 D5.0( 3 Votes )

Find the conjugate of each of the following:



Answer :

Given:

Firstly, we calculate and then find its conjugate




[ 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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