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प्रश्न
If p = −2, q = −1 and r = 3, find the value of 3p2q + 5pq2 + 2pqr
उत्तर
\[3 \times ( - 2 )^2 \times ( - 1) + 5 \times ( - 2) \times ( - 1 )^2 + 2 \times ( - 2 \times - 1 \times 3)\]
\[ = 3 \times ( - 2 \times - 2) \times ( - 1) + 5 \times ( - 2) \times ( - 1 \times - 1) + 2 \times ( - 2 \times - 1 \times 3)\]
\[ = - 12 - 10 + 12\]
\[ = - 10\]
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