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For an given A.P. tn=24,n=12,d=2,then a=? *1 pointFind 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»

Step-by-step EXPLANATION:

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



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