Skip to content
Philoid
Browse Saved
Back to chapter
Maths
20. Geometric Progressions
Home · Class 11 · Maths · Ref. Book · 20. Geometric Progressions
Prev
Next
Q18 of 176 Page 21

Mark the correct alternative in each of the following:

If , the value of x is


RHS = (0.0625)-54


∴


⇒ (4-2)-54 = 4108


LHS = 43(1+2+3…3x)


Sum of AP=





LHS =


⇒ 27x2+9x-216 =0


⇒ 3x2+x-24 = 0


⇒ 3x2+9x-8x-24 = 0


⇒ 3x(x+3)-8(x-3) =0



∴ x =8.

More from this chapter

All 176 →
16

Mark the correct alternative in each of the following:

If p, q be two A.M.’s and G be one G.M. between two numbers, then


17

Mark the correct alternative in each of the following:

If x is positive, the sum to infinity of the series is


19

Mark the correct alternative in each of the following:

Given that x > 0, the sum equals


20

Mark the correct alternative in each of the following:

In a G.P. of even number of terms, the sum of all terms is five times the sum of the odd terms. The common ratio of the G.P. is


Questions · 176
20. Geometric Progressions
1 2 3 3 3 3 3 3 4 5 6 6 6 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 1 1 1 1 1 2 2 2 2 2 2 2 2 2 3 3 3 4 4 4 4 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 1 1 1 1 1 2 3 4 5 6 7 8 8 8 8 9 10 11 12 13 1 2 3 4 5 6 7 8 8 8 8 8 9 9 9 10 10 10 11 11 11 11 12 13 14 15 16 17 18 19 20 21 22 23 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved