WebThe formula for the nth term of a geometric progression whose first term is a and common ratio is r is: a n =ar n-1. The sum of n terms in GP whose first term is a and the common ratio is r can be calculated using the formula: S n = [a (1-r n )] / (1-r). The sum of infinite GP formula is given as: S n = a/ (1-r) where r <1. ☛ Related Topics: WebAP and GP Questions and Answers : Here we are going to see some practice questions on arithmetic and geometric progression question and answers. Question 1 : If the roots of the equation (q − r)x 2 + (r − p)x + p − q = 0 are equal, then show that p, q and r are in AP. Solution : If the roots are real, then b 2 - 4ac = 0
If the pth term of a G. P. is x and qth term is y, then the nth term is ...
Webtp + q = m = Arp + q – 1 = Arp – 1rq. And. tp – q = n = Arp – q – 1 = Arp – 1r – q. We know that pth term = Arp – 1. ∴ m × n = A2r2p – 2. ⇒ Arp – 1 = (mn)1/2. ⇒ pth term = (mn)1/2. … WebMar 30, 2024 · Transcript. Example 21 If pth, qth, rth and sth terms of an A.P. are in G.P, then show that (p – q), (q – r), (r – s) are also in G.P. We know that the nth term of AP is a + (n – 1)d i.e. an = a + (n – 1)d It is given that ap, aq, ar & as in GP i.e. their common ratio is same So,𝑎_𝑞/𝑎_𝑝 = (ar )/qq = 𝑎𝑠/𝑎𝑟 We need to show (p – q), (q – r), (r – s) are in ... the oversight project
If the (m+n)th term of a gp is p and (m-n)th terma is q, show that …
WebApr 14, 2024 · If the \\( p^{\\text {th }}, q^{\\text {th }} \\) and \\( r^{\\text {th }} \\) terms of a \\( \\mathrm{GP}\\) are \\( a, b, c \\) then \\( \\left(\\frac{c}{b}\\right ... WebMar 30, 2024 · Prove that aq r br p cp q = 1 We know that nth term of G.P = ARn 1 (We are using a, r in the question, so we use A for first term and R for common ratio) It is given that pth term of G.P = a Ap = a ARp 1 = a a = ARp 1 aq r = ("ARp 1")q r We need to show that aq r br p cp q = 1 Also, qth term of G.P = b Aq = b ARq 1 = b b = ARq 1 br p = (ARq 1)r p … WebQuestion In G.P. (p+q) th term is m, (p−q) th term is n, then p th term is A nm B nm C nm D nm Medium Solution Verified by Toppr Correct option is B) Let the first term of G.P be 'a' and common ratio be 'r' given T p+q=ar p+q−1=m T p−q=ar p−q−1=n then multiplying the … shuriken pronunciation in english