WebQuestion The 24 th term of an. A.P. is twice its 10 th term. Show that its 72 nd term is 4 times its 15 th term. Hard Solution Verified by Toppr Let a be the first term and d be the common different Then a 24=2a 10 a+23d=29a+9d) a+23d=2a+18d a=5d a … WebNov 23, 2024 · Given that 24th term (t24) is twice the 10th term (t10). a + 23d = 2 (a + 9d) a + 23d = 2a + 18d a = 5d ------ (1) Given that 72nd term (t72) is twice the 34th term. a + 71d = 2 (a + 33d) a + 71d = 2a + 66d a = 5d ---- (2) From (1) and (2), LHS = RHS. Hope this helps! Find Math textbook solutions? Class 9 Class 8 Class 7 Class 6 Class 5 Class 4
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WebMay 30, 2024 · Answer: Given : 24th term (a24) is twice the 10th term a24 = 2a10 a + (24 - 1) d = 2 (a + (10 - 1)d [an = a + (n – 1) d] a + 23d = 2 (a + 9d) a + 23d = 2a + 18d a - 2a = 18d - 23d -a = - 5d a = 5d ………….. (1) We have to prove that, 72th term is twice its 34 term a72 = 2a34 a + (72 -1)d = 2 (a + (34 - 1)d a + 71d = 2 (a + 33d) 5d + 71d = 2 (5d + 33d) WebRD Sharma CBSE Class 10 Chapter 9 Arithmetic Progression EX 9.3 Q 10 csk construction llc
the 24th term of an A.P. is twice its 10th term. Show that its 72nd ...
WebApr 28, 2024 · In a certain AP 24th term is twice the 10th term.Prove that 72nd term is twice the 34th term See answers Advertisement Swarup1998 Proof : Let, the first term of the AP is a and the common difference is d. Then, n-th term = a + (n - 1)d • 24th term = a + (24 - 1)d = a + 23d • 10th term = a + (10 - 1)d = a + 9d • 72nd term = a + (72 - 1)d = a + 71d WebThe 24th term of an AP is twice its 10th term. Show that its 72nd term is 4 times it's 15th term CBSE Class 10-11 kishan swaroop yadav 8.78K subscribers Subscribe 2.4K views 4 … WebThe 24th term of an AP is twice its tenth term. Show that its 72nd term is 4times its 15th term. Solution: Question 70. If the sum of first 7 terms of an AP is 49 and that of first 17 terms 289. find the sum of its first n terms. Solution: Question 71. The sum of first m terms of an AP is 4m 2 – m. If its n. Also, find the 21st term of this ... eagle loan company lima ohio