Q. 3 C4.5( 4 Votes )

Express each of the following in the form (a + ib):

Given:

Now, rationalizing

…(i)

Now, we know that,

(a + b)(a – b) = (a2 – b2)

So, eq. (i) become

[ i2 = -1]

= 1 + 2i√2

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