$A . P . a, a + d, a + 2 d, . . . .$ . Hence find the common difference of the $A . P .$ for which
$11^{t h}$ term is $5$ and $13^{t h}$ terms is $79$

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Solution

$\begin{matrix} a_{11} = a + 10 d = 5 a_{13} = a + 12 d = 79 2 d = 74 d = 37 \end{matrix}$

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Similar questions

Q. Write the expression

a_{n} - a_{k}

for the A.P.

a, a + d, a + 2 d, . . . . .

.
Hence, find the common difference of the A.P. for which

11^{t h}

term is

5

and

13^{t h}

term is

79

Q. Write the expression a_n- a_k for the A.P. a, a + d, a + 2d, ...
Hence, find the common difference of the A.P. for which

(i) 11^th term is 5 and 13^th term is 79.

(ii) a₁₀ −a₅= 200

(iii) 20^th term is 10 more than the 18^th term.

Q. Write the expression

a_{n} - a_{k}

for the A.P: a+d, a+2d.... and find the common difference of the AP for which
(i) 11th terms is 5 and 13th terms is 79.
(ii) 20th term is 10 more then the 18th term.

Write the expression $a_{n} - a_{k}$ for the A.P. a, a+d, a+2d,...
Hence, find the common difference of the A.P. for which
(i) 11th term is 5 and 13th term is 79.
(ii) $a_{10} - a_{5} = 200$
(iii) 20th term is 10 more than the 18th term.

Q. Write the expression

a_{n} - a_{k}

for the A.P.

a, a + d, a + 2 d, . . . . .

Hence, find the common difference of the A.P for which

11

th term is

5

and

13

th term is

79

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A.P. a, a+d, a+2d,..... Hence find the common difference of the A.P. for which 11th term is 5 and 13th terms is 79

a11=a+10d=5a13=a+12d=792d=74d=37

$A . P . a, a + d, a + 2 d, . . . .$ . Hence find the common difference of the $A . P .$ for which
$11^{t h}$ term is $5$ and $13^{t h}$ terms is $79$

$\begin{matrix} a_{11} = a + 10 d = 5 a_{13} = a + 12 d = 79 2 d = 74 d = 37 \end{matrix}$