Question

समान्तर श्रेढी
श्रेढी (5a-x), 6a, (7a+x), ............ का 51 वाँ पद ज्ञात कीजिए।
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Answer 1

Answer:

a51= 55a+ 49x

Step-by-step explanation:

If a = 5a-x

d= 6a-(5a- x)

= a+x

so, a51 = a+ 50d

= 5a-x+50(a+x)

= 5a-x+50a+50x

= 55a +49x