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Question

Identify the zeroes of the given polynomial
p(z)=4z215zπ4π2

A
4π,π4
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B
4π,π4
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C
4π,π4
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D
4π,π4
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Solution

The correct option is B 4π,π4
Given P(z)=4z215πz4π2
To find out its roots, we have to equate it to zero
4z215πz4π2=0
4z216πz+πz4π2=0
4z(z4π)+π(z4π)=0
(4z+π)(z4π)=0
z=4π,π4

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