Question

8
*
2 points
Question 8.
1 3
If A =
3
and A2 - KA - 51 = 0, then K =
(a) 5
(b) 3
(C) 7
(d) None of these​

Answer 1

Step-by-step explanation:

None of these........

Answer 2

Answer:

if, A=3

A2-kA-51 = 0

6-3k-51=0

-45-3k=0

-3k= 45

k=-15 this is the right answer of this question

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