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

Solutions > Sequences First Term Calculator >

biến đổi laplace cos^2(t)

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

☐²

x^☐

√☐

^□√☐

□□

log_□

π

θ

∞

∫

ddx

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

simplify solve for expand factor rationalize

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Steps Examples

Generated by AI

nghịch đảo (

1	−4
4	−7

)

Solution

(

−79	49
−49	19

)

Show Steps

Hide Steps

Solution steps

One step at a time

(

1	−4
4	−7

)⁻¹

Tìm nghịch đảo ma trận 2x2 theo công thức: (

`a`	`b`
`c`	`d`

)⁻¹=1det (

`a`	`b`
`c`	`d`

) (

`d`	−`b`
−`c`	`a`

)

=1det(

1	−4
4	−7

) (

−7	−(−4)
−4	1

)

det(

1	−4
4	−7

)=9

=19 (

−7	−(−4)
−4	1

)

19 (

−7	−(−4)
−4	1

)=(

−79	49
−49	19

)

=(

−79	49
−49	19

)

Sequences First Term Examples

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High School Math Solutions – Algebra Calculator, Sequences

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CHÀO, hỏi một câu hỏi về nghịch đảo (

1	−4
4	−7

) hoặc chọn bên dưới

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