Find the sum of n terms of the AP a,a+d,a+2d,_ _ _ _ a+(n-1)d. Plz help really urgent , I will Mark you as brainlist.
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sn=n/2(2a+(n-1)d)
sn=n/2(2a+nd-d)
sn=n/2(2a+nd-d)
shreya5768:
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