ಒಂದು ಸಮಾಂತರ ಶ್ರೇಢಿಯ 4ನೇ ಮತ್ತು 8ನೇ ಪದಗಳು ಮೊತ್ತ 24. 6ನೇ ಮತ್ತು 10ನೇ ಮೊತ್ತ 44 ಆದರೆ ಶ್ರೇಢಿಯ ಮೊದಲ 3 ಪದಗಳನ್ನು ಕಂಡು ಹಿಡಿಯಿರಿ
Answers
Given : The sum of 4th and 8th terms of a AP are24. The sum of 6th and 10th are 44
To find : the first 3 terms of the series.
Solution:
AP is
a , a + d , a + 2d . ___________
first term = a
common difference = d
aₙ = a + ( n - 1) d
The sum of 4th and 8th terms = 24
=> a + 3d + a + 7d = 24
=> 2a + 10d = 24
=> a + 5d = 12 Eq1
sum of 6th and 10th are 44
=> a + 5d + a + 9d = 44
=> 2a + 14d = 44
=> a + 7d = 22 Eq2
Eq2 - Eq1
a + 7d - ( a + 5d ) = 22 - 12
=> 2d = 10
=> d = 5
a + 5d = 12
=> a + 5(5) = 12
=> a = - 13
first 3 terms of the series.
-13 , - 8 , - 5
Learn More:
a,a+d,a+2d. l and n terms of an AP find ( n-1)
brainly.in/question/7612734
FIRST term if an AP is 4 and the common difference is 3 its 12th term ...
brainly.in/question/7843059
a =3 d=101 Then For A.P Sn - Brainly.in
brainly.in/question/13170418