Question

P(Z) = z²-1 at Z = -1​

Answer 1

Step-by-step explanation:

$\tt \red{ GIVEN :-\implies \: p(z) = {z}^{2} - 1 \: \: \: \: \: \: \: \: \: \: \: ( \because \: z =- 1)}$

$\tt \pink { \implies\: p( - 1) = ( - 1) {}^{2} - 1}$

$\tt \purple{ \implies \: p( - 1) = 1 - 1}$

$\boxed{\tt \green{ \implies \: p( - 1) = 0}}$

Answer:

Step-by-step explanation:

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Answer 2

Answer:

GIVEN⟹p(z)=z2−1(∵z=−1)

\tt \pink { \implies\: p( - 1) = ( - 1) {}^{2} - 1}⟹p(−1)=(−1)2−1

\tt \purple{ \implies \: p( - 1) = 1 - 1}⟹p(−1)=1−1

\boxed{\tt \green{ \implies \: p( - 1) = 0}}⟹p(−1)=0

Step-by-step explanation:

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