Mathematics
G.P. 2/9, 1/3, 1/2: Assertion (A): 5th of the given G.P. is 1 1/8. Reason (R): If for a G.P., the first term is a, the common ratio is r and the number of terms = n, then sum of the first n term Sn = for all r. 1. A is true, R is false. 2. A is false, R is true. 3. Both A and R are true and R is correct reason for A. 4. Both A and R are true and R is incorrect reason for A.
Related Questions
For a G.P., its fourth term = x, seventh term = y and tenth term = z.
Assertion (A): x, y and z are in G.P.
Reason (R): y2 = (ar6)2 = ar3 × ar9 = xz.
A is true, R is false.
A is false, R is true.
Both A and R are true and R is correct reason for A.
Both A and R are true and R is incorrect reason for A.
G.P. : = 3 - 6 + 12 - 24 + …………. - 384
Statement (1): Product of 5th term from the beginning and 5th term from the end of the G.P. is - 1152.
Statement (2): In an G.P. the product of nth term from the beginning and nth term from the end is
1st term + last term
Both the statements are true.
Both the statements are false.
Statement 1 is true, and statement 2 is false.
Statement 1 is false, and statement 2 is true.