Table of Contents
What is the next number in the sequence 2 8 18?
72
The next number in the sequence 2, 8, 18, 32, 50, …. is : – GKToday. Hence, 72 will be the next number in this sequence. Option [B] is the right answer.
What is the nth term rule of the linear sequence of 2 5 8?
2 , 5 , 8 , 11 , 14 , . . . Answer: The sequence is increasing by 3 each time so compare the sequence with the multiples of 3 (3,6,9,12,15…). You will then need to minus 1 from the multiples of 3 to give the numbers in the sequence. So the nth term is 3n – 1.
What is the nth term rule of the quadratic sequence?
Sequence – 2n² If we combine an2 with bn + c, we get the nth term rule of our quadratic sequence 2n2 + 3n + 1. You might be wondering why, to find the nth term of a quadratic sequence, we divide the second difference by 2 to find the value of a, when in a linear sequence we can just use the difference itself.
What kind of sequence is this 2 8 32?
Explanation: This is a geometric sequence, since each term after the first is obtained by multiplying a common ratio, r . The common ratio is 4 .
What is the nth term of an arithmetic sequence 2 5 8?
Nth term will be 3n-1.
What is the formula for the nth term of a sequence 4 1?
If first term is a1 and common difference in such arithmetic sequence is d , nth term is given by a1+(n−1)×d . Hence nth term in given series is. 4+(n−1)×(−3) = 4−3n+3.
How do you find the nth term of a sequence?
Add or subtract a number to obtain the sequence given in the question. The n th term of this sequence is -2n + 5 (or 5 − 2n). Example 3: find the nth term of a sequence including decimals. Find the n th term for the sequence 0.2, 0.5, 0.8, 1.1, 1.4, ….
What is the formula for the nth term of the equation?
nth term formula is: an = a 1 + (n – 1)d
How do you find the number of terms in an arithmetic sequence?
Arithmetic Sequence Formulas. n th Term Formula. a n = a 1 + (n – 1)d. Sum of First n Terms. S n = n/2 (first term + last term) Where, a n = n th term that has to be found. a 1 = 1 st term in the sequence. n = Number of terms.
How do you find the first term of a n-th term?
If the n th term = 2n + 1 To find the first term we substitute n = 1 into the n th term. 1st term = 2 (1) + 1 = 3 To find the second term we substitute n = 2 into the n th term.