Question

For an given A.P. tn=24,n=12,d=2,then a=? *

1 point
Find the value of the discriminant for the equation: x²+2x-9=0 


Find the value of the discriminant for the equation: x²+2x-9=0 *​

Answer 1

Step-by-step explanation:

$tn = a + (n - 1) \times d \\ 24 = a + (12 - 1) \times 2 \\ = > 24 = a + 22 \\ = > a = 24 - 22 \\ = > a = 2$