Question

m 2
_5 7.if the valu of the determinant is31 find the value of m​

Answer 1

Answer:

Given,

∣

∣

∣

∣

∣

∣

m

−5

2

7

∣

∣

∣

∣

∣

∣

⇒7m−(−10)=31

⇒7m+10=31

⇒7m=21

⇒m=3

Step-by-step explanation:

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