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Mathematics : Arithmetic Progressions

Short Answer Type

181. Which term of the A .P. 3. 15, 27, 39...........will be 132 more than its 60th term.

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182. In an A .P. the sum of its first n term is n² + 2n. Find its 18th term.

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183. The third terms of an A .P. is three and 11th term is – 21. Find its Ist term and common difference.

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184. The n^thterm of an A .P. is 7 - 4/7. Find its common difference.

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185. The n^th term of an A .P. is 6n + 2. Find its common difference.

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186. Write the next term of the A .P.

square root of 8 comma space square root of 18 comma square root of 32 comma space...........

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187. Write the next term of the A .P.

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188. The first term of an A .P. is P and its common difference is q. Find its 10^th term.

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189. The sum of n terms of an A .P. is 3n² + 5n. Find the A .P. Hence, find its 16^th term.

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190. The sum of the 4^th and 8^th ter of an A.P. is 24 and the sum of the 6^th and 10^th terms is 44. Find the first three terms of the A .P.

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