For an A.P.,the first term is 10 and the 10^{ | vedclass

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(D) Given that for an $A.P.$,the first term $a = 10$ and the $10^{th}$ term $a_{10} = 100$.We need to find the sum of the first $10$ terms,denoted by

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$550$

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(D) Given that for an $A.P.$,the first term $a = 10$ and the $10^{th}$ term $a_{10} = 100$.We need to find the sum of the first $10$ terms,denoted by $S_{10}$.The formula for the sum of the first $n$ terms of an $A.P.$ when the first and last terms are known is given by:$S_n = \frac{n}{2} (a + a_n)$Here,$n = 10$,$a = 10$,and $a_{10} = 100$.Substituting these values into the formula:$S_{10} = \frac{10}{2} (10 + 100)$$S_{10} = 5 	imes 110$$S_{10} = 550$Thus,the sum of the first $10$ terms is $550$.

For an $A.P.$,the first term is $10$ and the $10^{th}$ term is $100$. Then,the sum of the first $10$ terms is..........

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