a
C
→
5
n = 26+1=27
अतः दी गई A.P. में 27 पद हैं।
प्रश्न 6, क्या A.P.: 11,8,5,2,... का एक पद-15
क्यों?
हल : यहाँ,
= 8-11 3-3
43-0 = 5-8=-3
4-03 = 2-53-3
a..1-a, हर बार समान है। अतः दी गई संख्या A.P. का।
प्र
जन
Answers
Answered by
0
Answer:
a = 11 , d = -3 , n = 15
: AP(-15)= a + ( n - 1 ) × d
= 11 + ( -3 - 1 ) × 16
= 11 - 2 × 16
= 11 - 32
= -22
AP (15) = -22
hope the answer is right and it will help you thank you
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