2 years ago

Obtain all the zeros of the polynomial f[x]=x^4-3x^2-x^2+9x-6 if two of its zeros are-√3 and√3

Mathematics

1 answer:

grandymaker [24]2 years ago

7 0

Answer:woah

Step-by-step explanation:

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Last questions, plz help

Goryan [66]

Answer:

9. $a_n=7+6n$

10. $a_n=a_{n-1}+7$

Step-by-step explanation:

9. Given the sequence

$13, 19, 25, ...$

In this sequence,

$a_1=13\\ \\a_2=19\\ \\a_3=25\\ \\...$

Note that

$a_2-a_1=19-13=6\\ \\a_3-a_2=25-19=6,$

then the common difference in this sequence is $d=6$

You have

$a_1=13\\ \\d=6,$

then the explicit formula is

$a_n=a_1+(n-1)d\\ \\a_n=13+(n-1)\cdot 6\\ \\a_n=13+6n-6\\ \\a_n=7+6n$

10. Given the sequence

$-10,-3, 4, 11, ...$

In this sequence,

$a_1=-10\\ \\a_2=-3\\ \\a_3=4\\ \\a_4=11\\ \\...$

Note that

$a_2-a_1=-10-(-3)=-10+3=-7\\ \\a_3-a_2=-3-4=-7\\ \\a_4-a_3=11-4=7,$

then the common difference in this sequence is $d=7$

You have

$a_1=-10\\ \\d=7,$

then the recursive formula is

$a_n=a_{n-1}+d\\ \\a_n=a_{n-1}+7$

5 0

3 years ago

7. Solve: 33 +21 + 3 - 5

muminat

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Eight times the sum of a number and 9 equals 7.

Dominik [7]

Answer:

8(x+9)=7

comment if you need anything else like solving for x

8 0

2 years ago

Jane has gone on a diet.She starts with weight of 61kg and loses 2kg every 3 weeks for 12 weeks.she abandoned her diet at the st

andrezito [222]

Answer:

55 kg

Step-by-step explanation:

lose 2kg per 3 week

for 12 weeks

3×4=12

4×2=8

61-8=53

1kg per week gained for 2 weeks = 2kg

53kg + 2 kg =55kg

Hope you understand...

7 0

1 year ago

(-5)+(-4) what is this answer

anzhelika [568]

Answer:

-9

Step-by-step explanation:

Both of the numbers are negative and adding them will give you -9.

4 0

3 years ago

Read 2 more answers