CBSE Class 10 Answered
If 7times of 7th term is equal to 11times of 11th terl,then what is the 18th term of that A.P?
Asked by nayakrajat408 | 23 Nov, 2018, 21:51: PM
Expert Answer
Let a is the initial value and d be the common difference of A.P
7th term, t7 = a + 6d
11th term, t11 = a +10d
it is given 7×t7 = 11×t11
hence 7a+42d = 11a +110d or 4a = -68d , a = -17d.....(1)
18th term of A.P = a+17d = 0 , because of eqn.(1)
Answered by Thiyagarajan K | 24 Nov, 2018, 09:15: AM
Application Videos
-
Solving linear pair of equations_Linear pair 1 ...
This video explains how to find solution of pair of linear equations in two... -
Word problems on linear equations_1
This video explains how to formulate the given word problem into pair of li... -
Word problems on linear equations_2
This video explains how to formulate the given word problem into pair of li... -
Word problems on linear equations_3
This video explains how to formulate the given word problem into pair of li... -
Word problems on linear equations_4
This video explains how to formulate the given word problem into pair of li...
Concept Videos
-
Graphical Solution to Linear Equations
This video explains the concept of linear equations in two variables and us... -
Substitution Method
This video explains the concept of substitution method to solve a pair of l... -
Elimination Method
This video explains the elimination method to solve a pair of linear equati... -
Cross Multiplication Method ...
This video explains the cross multiplication method to solve a pair of line... -
Application of linear equations that are not in standar ...
This video discusses equations reducible to linear form.
CBSE 10 - Maths
Asked by dheerrana109 | 22 Jul, 2024, 10:26: AM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by vishwanathhikkalagutti | 17 Jul, 2024, 07:25: AM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by avadheshkumar94 | 13 Jul, 2024, 20:18: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by 3ra2231 | 11 Jul, 2024, 20:55: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by avadheshkumar94 | 10 Jul, 2024, 10:14: AM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by syashkurun | 08 Jul, 2024, 19:14: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by francissaka528 | 08 Jul, 2024, 06:15: AM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by radhe9868017031 | 05 Jul, 2024, 14:10: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by naidulokesh892 | 04 Jul, 2024, 20:42: PM
ANSWERED BY EXPERT
