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The fourth term from the end of the G.P. 8, 4, 2, ….., 1/128 is
Choice (a) is correct. The series is a G.P. with a = 8, r = 1/2, l = 1/128 The nth term lₙ from end is given by lₙ = 1/rⁿ ⁻ ¹ The fourth term l₄ from end is given by l₄ = 1/28/(1/2)³ = 8/128 = 1/16 For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-8
Choice (a) is correct.
The series is a G.P. with a = 8, r = 1/2, l = 1/128
The nth term lₙ from end is given by lₙ = 1/rⁿ ⁻ ¹
The fourth term l₄ from end is given by l₄ = 1/28/(1/2)³ = 8/128 = 1/16
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Which term of the series 1 – 1/3 + 1/9 – 1/22 + …. is -(1/243)?
Choice (d) is correct. We have a = 1, r = -(1/3) Let nth term tₙ = -(1/243) ⇒ a.rⁿ ⁻ ¹ = -(1/243) ⇒ 1.(-1/3)ⁿ ⁻ ¹ = (-1/3)⁵ ⇒ n - 1 = 5 ⇒ n = 6 For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-8
Choice (d) is correct.
We have a = 1, r = -(1/3)
Let nth term tₙ = -(1/243)
⇒ a.rⁿ ⁻ ¹ = -(1/243) ⇒ 1.(-1/3)ⁿ ⁻ ¹ = (-1/3)⁵
⇒ n – 1 = 5 ⇒ n = 6
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The sixth term from the beginning of the G.P. 8, 4, 2, … is
Choice (b) is correct. The given sequence is a G.P. with a = 8, r = 1/2 The nth term aₙ from the beginning is given by aₙ = arⁿ ⁻ ¹ The sixth term a₆ from beginning is given by a₆ = 8 × (1/2)⁵ = 8/32 = 1/4 For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chaRead more
Choice (b) is correct.
The given sequence is a G.P. with a = 8, r = 1/2
The nth term aₙ from the beginning is given by aₙ = arⁿ ⁻ ¹
The sixth term a₆ from beginning is given by a₆ = 8 × (1/2)⁵ = 8/32 = 1/4
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The equation of line parallel to the x-axis and at a distance of 2 units below y-axis is
Choice (b) is correct The equation of line parallel to the x-axis and at a distance of 2 units below x-axis is y = -2 This question related to Chapter 9 maths Class 11th NCERT. From the Chapter 9: Straight Lines. Give answer according to your understanding. For more please visit here: https://www.tiRead more
Choice (b) is correct
The equation of line parallel to the x-axis and at a distance of 2 units below x-axis is y = -2
This question related to Chapter 9 maths Class 11th NCERT. From the Chapter 9: Straight Lines. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-9
The equation of line parallel to the y-axis and at a distance of 4 units to its right is
Choice (c) is correct The equation of line parallel to the y-axis and at a distance of 4 units to its right is x = 4. This question related to Chapter 9 maths Class 11th NCERT. From the Chapter 9: Straight Lines. Give answer according to your understanding. For more please visit here: https://www.tiRead more
Choice (c) is correct
The equation of line parallel to the y-axis and at a distance of 4 units to its right is x = 4.
This question related to Chapter 9 maths Class 11th NCERT. From the Chapter 9: Straight Lines. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-9