Q. 325.0( 1 Vote )

# Find if

(i) and

(ii) and

(iii) and

Answer :

(i) using formula,

Substituting the given values in above equation we get,

(ii) using formula,

Substituting the given values in above equation we get,

(iii) using formula,

Substituting the given values in above equation we get,

Now this will yield imaginary value.

We know that,

Therefore,

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