p2 -8q2 + 4p2 - q2 - p2 + pq – p + q, When p = 1⁄2 q = 1⁄2
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Step-by-step explanation:According to question
P-1/2 and q-1/2
So,
P2 -8q2 +4p2- 12-p2 + la - p + q
=-23/4
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