Solutions > Sequences N-th Term Calculator >

next term a_{1}=3,a_{2}=2,a_{n}=-a_{n-1}

Topic

Full pad

`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

simplify solve for expand factor rationalize

See All

area

asymptotes

critical points

derivative

domain

eigenvalues

eigenvectors

expand

extreme points

factor

implicit derivative

inflection points

intercepts

inverse

laplace

inverse laplace

partial fractions

range

slope

simplify

solve for

tangent

taylor

vertex

geometric test

alternating test

telescoping test

pseries test

root test

Steps Examples

Generated by AI

domain 20x²

Solution

−∞ <x<∞

Interval Notation

(−∞ , ∞ )

Show Steps

Hide Steps

Solution steps

One step at a time

(

0	9	3
2	0	4
3	7	0

)

Matrix minors and cofactors

A minor M_{i, j} is the determinant of the square matrix formed by deleting row i and column j from larger square matrix A.
A cofactor C_{i, j} is minor M_{i, j} when i+j is even and −M_{i, j} when i+j is odd thus C_{i, j}=(−1)^i+jM_{i, j}

M_{1, 1}=det(

0	4
7	0

): −28

M_{1, 2}=det(

2	4
3	0

): −12

M_{1, 3}=det(

2	0
3	7

): 14

M_{2, 1}=det(

9	3
7	0

): −21

M_{2, 2}=det(

0	3
3	0

): −9

M_{2, 3}=det(

0	9
3	7

): −27

M_{3, 1}=det(

9	3
0	4

): 36

M_{3, 2}=det(

0	3
2	4

): −6

M_{3, 3}=det(

0	9
2	0

): −18

Matrix of Minors M_{i, j}

(

−28	−12	14
−21	−9	−27
36	−6	−18

)

Matrix of Cofactors C_{i, j}=(−1)^i+jM_{i, j}

(

(−1)⁰⁺⁰(−28)	(−1)⁰⁺¹(−12)	(−1)⁰⁺²· 14
(−1)¹⁺⁰(−21)	(−1)¹⁺¹(−9)	(−1)¹⁺²(−27)
(−1)²⁺⁰· 36	(−1)²⁺¹(−6)	(−1)²⁺²(−18)