Q. d(n)=3(−2)n−1What is the 4th term in the sequence?
Understand formula: Understand the given sequence formula.The formula d(n)=3(−2)(n−1) defines a sequence where each term is generated by plugging in the position number n into the formula.
Find 4th term: Plug in the value of n=4 to find the 4th term.We need to find d(4), which means we will substitute n with 4 in the formula.d(4)=3(−2)4−1
Simplify exponent: Simplify the exponent.Calculate the value of (−2)(4−1), which is (−2)3.(−2)3=−2×−2×−2=−8
Multiply by 3: Multiply the result by 3. Now, multiply the result from Step 3 by 3 as per the sequence formula. d(4)=3×(−8)=−24