Answer:
n = 24
Step-by-step explanation:
From the question,
The formula for the sum of the term in an AP is given as
Sₙ = n(a+L)/2.................. Equation 1
Where Sₙ = sum of the nth term, n = number of term, a = first term, L = last term.
make n the subject of the equation
n = 2Sₙ/(a+L)................. Equation 2
Given: Sₙ = 420, a = 4, L = 31
Substitute these values into equation 2
n = (2×420)/(4+31)
n = (840)/35
n = 24.
Hence, n = 24
15/ 5/8 is the same as 15 * 8/5 so that would be 120/5 or 24
Hello:
49x^16 −16y^64 = 7²(x^8)² - 4²(y^32)² =(7x^8)² - (4y^32)²
=(7x^8 - 4y^32)(7x^8 + 4y^32)
(by identite : a²-b² = (a-b)(a+b))
Answer:
3
Step-by-step explanation:
<span>The code goes like this
int temp;
temp = pos1; pos1 is assigned to temp.
pos1 = pos2; pos2 is assigned to pos1 and at this point temp is same as temp
pos2 = pos3; pos3 is assigned to pos2 and at this point temp is same as temp
pos3 = pos4; pos4 is assigned to pos3 and at this point pos4 is same as temp
pos4 = temp; pos4 is temp now and cycle rotate making pos4 getting pos1 value.</span>