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gulaghasi [49]
3 years ago
11

The complex root of -64^1/6

Mathematics
2 answers:
LuckyWell [14K]3 years ago
5 0
Example of Roots of Complex Number
(64)1/6={2cis(60k)∘} for k=0,1,2,3,4,5.
nataly862011 [7]3 years ago
5 0

Answer:

4i

Step-by-step explanation:

(-64)^1/6

=> 64i^(1/3)

=> (4i)^3(1/3)

=> 4i

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Find the x-intercept and the y-intercept of the graph of the equation 7x + 25y = 12. Then graph the equation.
Vikki [24]

Answer: sorry, i couldn't graph it

but the equation was done.

7x+25y =12

                    rearrange it into y=mx+c

it becomes:

25y = -7x + 12

y= -0.28x+12

to find y intercept: x=0

so

y= -0.28*0+12

y=12

to find x intercept, y=0

so

0= -0.28x+12

0.28x = 12

x= 12/0.28

x= 42.857142857142857142857142857143‬

approximately = 43(whole number) or 42.9(one decimal place) or 42.86( 2 decimal places)

5 0
3 years ago
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nalin [4]
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7 0
3 years ago
Please help to solve this.<br> Find sin5x,if sinx+cosx=1,4
MrMuchimi

Answer:

Hello,

Step-by-step explanation:

we must first remember that:

\boxed{sin(5x)=5sin(x)-20*sin^3(x)+16*sin^5(x)}\\\\

Let say t=sin(x)

sin(x)+cos(x)=1.4\\\\t+\sqrt{1-t^2}=1.4\\\sqrt{1-t^2}=1.4-t\ we\ square\\1-t^2=1.4^2+t^2-2.8*t\\2t^2-2.8*t+0.96=0\\\Delta=2.8^2-4*2*0.96=0.16=0.4^2\\\\t=\dfrac{2.8-0.4}{4} =0.6\ or\ t=\dfrac{2.8+0.4}{4}=0.8\\\\t^3=0,216\ or\ t^3=0,512\\\\t^5=0,07776\ or\ t^5=0,32768\\\\\boxed{sin(5x)=5*0.6-20*0.216+16*0.07776=-0,07584}\\\\or\\\\\boxed{sin(5x)=5*0.8-20*0.512+16*0.32768=-0,99712}

8 0
3 years ago
Can someone help me with this 1st question please
lianna [129]

Answer:

Add 3 to X to get Y

Step-by-step explanation:

1 + 3 = 4

2 + 3 = 5

4 0
2 years ago
Read 2 more answers
Please answer thanks
morpeh [17]

-8^2(3/4)-10  -64(3/4)-10 -64/1 (3/4)-10= -64×3/1×4 (-192/4)-10 -48-10 -58

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3 years ago
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