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Addition Rule of Differentiation

If m = -2 and...

Question

If $m = - 2$ and $n = 2$ ; Find the value of:
(iv) $2 n^{3} - 3 m$

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Solution

Given that : $m = - 2$ and $n = 2$
Considering $2 n^{3} - 3 m$
Substituting the values of $m$ and $n$ in the above expression , we have :
$2 n^{3} - 3 m = 2^{3} - 3 (- 2)$
$= 2 (8) + 3 (2) = 16 + 6 = 22$
Hence, the value of $2 n^{3} - 3 m$ is $22$ .

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Addition Rule of Differentiation

Standard XII Mathematics

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