If an = 3 – 4n, show that a1 a2, a3,…form an AP. Also find S20.
08/11/2024
Mathematics
10th
Arithematic Progressions
Which term of the AP: –2, –7, –12,… will be –77? Find the sum of this AP upto the term –77.
08/11/2024
Mathematics
10th
Arithematic Progressions
Find the sum: 1 + (–2) + (–5) + (–8) + … + (–236)
08/11/2024
Mathematics
10th
Arithematic Progressions
The first term of an AP is –5 and the last term is 45. If the sum of the terms of the AP is 120, then find the number of terms and the common difference.
08/11/2024
Mathematics
10th
Arithematic Progressions
How many numbers lie between 10 and 300, which when divided by 4 leave a remainder 3?
08/11/2024
Mathematics
10th
Arithematic Progressions
Which term of the AP: 53, 48, 43,… is the first negative term?
08/11/2024
Mathematics
10th
Arithematic Progressions
Find the 12th term from the end of the AP: –2, –4, –6,…, –100.
08/11/2024
Mathematics
10th
Arithematic Progressions
If sum of the 3rd and the 8th terms of an AP is 7 and the sum of the 7th and the 14th terms is –3, find the 10th term.
08/11/2024
Mathematics
10th
Arithematic Progressions
If the nth terms of the two APs: 9, 7, 5, … and 24, 21, 18,… are the same, find the value of n. Also find that term.
