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2 years ago

Factorize: x^2y^2+4xy+4

Mathematics

1 answer:

azamat2 years ago

3 0

${x}^{2} {y}^{2} + 4xy + 4 \\ (xy + 2) ^{2} \\ (xy + 2)(xy + 2) \\$

PLEASE GIVE BRAINLIEST

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Please help meeeee! Which interval would 10 be included in?<br> O 0-10<br> O 10-20

Alexeev081 [22]

Answer:

the answer is 10 and another one is 30

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3 years ago

3cot^(2 )x-1=0<br><br> Pls Help

Elina [12.6K]

Answer:

$x=\frac{\pi }{6} ,\frac{7\pi }{6}$

Step-by-step explanation:

$3*cot^2x-1=0\\\\3*cot^2x=1\\\\cot^2x=\frac{1}{3} \\\\cot(x)=\sqrt{\frac{1}{3} } \\\\cot(x)=\frac{1}{\sqrt{3} } \\\\\frac{1}{tan(x)}=\frac{1}{\sqrt{3} } \\\\tan(x)=\sqrt{3} \\$

x=tan^-1( $\sqrt{3}$ )

It has to be in Quadrant 1 $\frac{+}{+} =+$ or 3 $\frac{-}{-}=+$ for positive.

$x=\frac{\pi }{6} ,\frac{7\pi }{6}$

Unless that incorrect due to tan(x) range is $-\frac{\pi }{2} \leq x\leq \frac{\pi }{2}$ . Then the only answer is $x=\frac{\pi }{6}$

5 0

3 years ago

How To work this out ?

MrMuchimi

(a) Using the completing the square method, we need to write into the form of where , so
Expand to find the value of c
Notice that we get back the first two terms, the and the .We need to get rid of the last term of '9' as the term was not in the original form. The final form will look like
Hence,
(b)
(c) , square root both sides plus and minus of 2 Hence

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3 years ago

_2,350 which number makes it divisible by 9. A6. B5. C7. D8.

IRINA_888 [86]

C is the correct answer

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4 years ago

A coin is tossed twice in succession. Let A be the event that the first toss is heads and let B the event that the second toss i

Alenkinab [10]

Answer:

Step-by-step explanation:

A coin has two faces, a head (H) or tail (T). Tossing a coin twice in succession would give the following sample size;

{HH, HT, TH, TT}

Given that: A = first toss is heads, B = second toss is heads, then:

i. P(A) = {HH, HT} = 2

ii. P(B) = {TH} = 1

iii. P(A∩B) = {HH} = 1

iv. P(B /A) = $\frac{1}{2}$

3 0

3 years ago

Factorize: x^2y^2+4xy+4​

Factorize: x^2y^2+4xy+4