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CBSE Class 10 Answered

what is AP?
Asked by Krishna Kumar Yadav | 10 Sep, 2014, 04:31: PM
answered-by-expert Expert Answer
AP means arithmetic progression.
 
C o n s i d e r space t h e space e x a m p l e comma space 1 comma 4 comma 7 comma 10 comma 13 comma 16 comma 19 comma.... I n space t h e space a b o v e space s e r i e s comma space e v e r y space n u m b e r space d i f f e r s space b y space t h e space p r e v i o u s space n u m b e r space b y space 3 space a s s u m i n g space 1 space a s space t h e space i n i t i a l space t e r m T h u s comma space t h e space c o m m o n space d i f f e r e n c e comma space d comma space i s space 3 space a n d space t h e space i n i t i a l space t e r m space o f space t h e space A P comma space a comma space i s space 1. F r o m space t h e space a b o v e space s e r i e s space w e space c a n space f i n d space t h e space n t h space t e r m space o f space t h e space s e r i e s space b y space u sin g space t h e space f o r m u l a t subscript n equals a plus open parentheses n minus 1 close parentheses d S u p p o s e space i n space t h e space a b o v e space s e r i e s comma space l e t space s space f i n d space t h e space 10 t h space t e r m space o f space t h e space s e r i e s. T h u s comma t subscript 10 equals 1 plus open parentheses 10 minus 1 close parentheses cross times 3 equals 1 plus 9 cross times 3 equals 1 plus 27 equals 28 T h e r e f o r e comma space 28 space i s space t h e space 10 t h space t e r m space o f space t h e space a b o v e space s e r i e s.
Answered by Dharma Teja | 10 Sep, 2014, 04:45: PM

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CBSE 10 - Maths
1.The mean weight of 9 students is 25 Kg. if one more student is joined in the group, the mean is unaltered. Find the weight of 10th student 2.If the nth term of an A.P is pn+q find its common difference.
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CBSE 10 - Maths
which term of the AP 3,8,13,18.....is. 78?
Asked by durgauikey7000 | 08 Dec, 2023, 08:16: PM
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CBSE 10 - Maths
if m times the m th term of an AP is equal to n times the n th term, show that the (m+n) th term of the AP is zero
Asked by prassanna.j | 13 Nov, 2023, 11:23: PM
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CBSE 10 - Maths
The mth term of an AP is n and the nth term is m. Find the rth term of the AP.
Asked by latayadav23 | 17 Oct, 2023, 08:25: PM
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CBSE 10 - Maths
The 11th term from the end of the AP 10, 7, 4,........, -62 is  A) 25 B) 16 C) -32 D) 0
Asked by paresh0311 | 21 Mar, 2023, 04:58: PM
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n/2 [2+2n]
Asked by vaishaliboriwarruturushi | 16 Dec, 2022, 07:13: PM
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find the 31th term of an AP whose 11th term is 38 and 16th term is 73
Asked by jaiprakashprasadr | 19 Jul, 2022, 09:22: PM
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CBSE 10 - Maths
an-ak for the AP a,a+d,a+2d
Asked by harinimathi815 | 21 Feb, 2022, 08:14: PM
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CBSE 10 - Maths
plzz solve all these
question image
Asked by monalipradhan909 | 21 Mar, 2021, 07:10: PM
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CBSE 10 - Maths
The 8th term of APThe 8th term of AP is 0. Prove that its 38 term is triple of its 18th term  
Asked by Shirlythomas1332 | 20 Mar, 2021, 10:11: AM
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