Answer:
Tn=12n(n+1)
Step-by-step explanation:
Explanation:
These are the triangular numbers - each term in the sequence being the sum of the first n positive integers:
T1=1=1
T2=3=1+2
T3=6=1+2+3
etc.
Notice that:
2Tn=(0)+1+(0)+2+...+(n−1)+(0)+n
2Tn+(0)+n+(n−1)+...+(0)+2+(0)+1
2Tn=(n+1)+(n+1)+...+(n+1)+(n+1)
2Tn=n(n+1)
So:
Tn=12n(n+1)
Answer:
Its D
Step-by-step explanation:
x = 1
x = -1
x= 0.0000 - 3.0000 i
x= 0.0000 + 3.0000 i
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "x2" was replaced by "x^2". 4 more similar replacement(s).
Step by step solution :
Step 1 :
Equation at the end of step 1 :
((((((x6)-(2•(x5)))+(9•(x4)))-24x3)-x2)+18x)-9 = 0
Step 2 :
Equation at the end of step 2 :
(x6)-(2•(x5)+(32x4)-24x3)-x2)+18x)-9 = 0
Step 3 :
Equation at the end of step 3 :
(x6)-2x5)+32x4)-24x3)-x2)+18x)-9 = 0
Step-by-step explanation:
An angle is a shape, formed by two lines or rays diverging from one common point (the vertex).
Answer: <em>Assuming it's not a 0° angle nor an 180° angle, the rays intersect in C) 1 point.</em>
Answer:
Step-by-step explanation:
<u>Step 1</u>:-
Suppose that E and F are two events and that P(E n F) = 0.3
also given P(E) =0.5
<u>Conditional probability</u>:-
if E₁ and E₂ are two events in a Sample S and P(E₁)≠ 0, then the probability of E₂ , after the event E₁ has occurred, is called the <u>Conditional probability</u>
of the event E₂ given E₁ and is denoted by
