Math, asked by sarakhan786, 1 year ago

find the 31st term of an AP whose 11th term is 12 and 16th term is 73.

Plzzz give answer fast..... ​

Answers

Answered by padmalaya143
4

Answer is with the explanation.

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Answered by Anonymous
2

Step-by-step explanation:

t11 = a + 10d = 12.....(1) \\ t16 = a + 15d = 73.....(2) \\  \\ after \: solving \: these \: equations \\ we \: will \: get =  >  \\  \\ 5d = 61 \\ d =  \frac{61}{5}  \\ substitute \: d =  \frac{61}{5}  \: in \: (1) \\  \\ a + 10  \times \frac{61}{5}  = 12 \\ a =  - 110 \\  \\ t31 = a + 30d \\  \:  \:  \:  \:  \:  \:  \:  \: =  - 110 + 30 \times  \frac{61}{5}  \\ \:  \:  \:  \:  \:  \:  \:  \:  =  - 110 + 366 \\  \:  \:  \:  \:  \:  \:  \:  \:= \:  \:  \:  \:  256 \\  \\ so \: thirtyfirst \: term \: of \: following \: ap \: is \: 256 \\  \\  \\ hope \: it \: helps \: uh..........

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