Question

If the 5 th and 12 th term of an A. P are 14 and 35 respectively. Find the first and the common differences

Answer 1

Here is your answer ⬇️⬇️⬇️⬇️⬇️

a5 = 14

a12 = 35

=> a+4d = 14 - - - - - - - - i

a+11d = 35 - - - - - - - - - - - - ii

Subtracting eq i from eq ii

a+11d = 35

a+4d = 14

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7d = 21

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=> d = 3

a+4d = 14

=> a+4x3 = 14

=> a = 14-12

= 3

HOPE IT HELPS YOU !!!

Answer 2

This is the answer. Hope it is helpful