Trying to find the right answer to this..

1, 3, 9, 27,....... a 2 – a 1 = 3 – 1 = 2 a 3 – a 2 = 9 – 3 = 6 As a 2 – ≠ a 3 – a 2 the given list of numbers does not form an A .P.

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Arithmetic Progressions

Short Answer Type

21.

Which of the following are APs? If they form an AP, find the common difference d and write three more terms.
0.2, 0.22, 0.222, 0.2222, . . .

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22.

Which of the following are APs? If they form an AP, find the common difference d and write three more terms.
0, – 4, – 8, –12, . . .

129 Views

23.

Which of the following are APs? If they form an AP, find the common difference d and write three more terms.

$negative 1 half comma space minus 1 half space. space minus 1 half space. negative 1 half space comma.....$

233 Views

24.
Which of the following are APs? If they form an AP, find the common difference d and write three more terms.
1, 3, 9, 27, . .

1, 3, 9, 27,.......
a₂ – a₁ = 3 – 1 = 2
a₃ – a₂ = 9 – 3 = 6
As a₂ – ≠ a₃ – a₂the given list of numbers does not form an A .P.

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25.

Which of the following are APs? If they form an AP, find the common difference d and write three more terms.
a, 2a, 3a, 4a, . .

120 Views

26.

Which of the following are APs? If they form an AP, find the common difference d and write three more terms.
a, a₂ , a₃ , a₄ , . . .

120 Views

27.

Which of the following are APs? If they form an AP, find the common difference d and write three more terms.

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123 Views

28.

Which of the following are APs? If they form an AP, find the common difference d and write three more terms.

$square root of 3 comma space square root of 6 comma space square root of 9 comma space square root of 12 comma space.....$

122 Views

29.

Which of the following are APs? If they form an AP, find the common difference d and write three more terms.
1², 3², 5², 7²,.......

99 Views

30.

Which of the following are APs? If they form an AP, find the common difference d and write three more terms.
1², 5², 7², 73,.......

87 Views

Previous Year Papers

Test Series

Test Yourself

Short Answer Type

24. Which of the following are APs? If they form an AP, find the common difference d and write three more terms.1, 3, 9, 27, . .

24.
Which of the following are APs? If they form an AP, find the common difference d and write three more terms.
1, 3, 9, 27, . .