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DochEvi [55]
3 years ago
14

How do you bisect angles???

Mathematics
1 answer:
Leokris [45]3 years ago
8 0

Answer:

• Using a ruler draw two straight lines to make an angle

• Put the pin of the compass at the point of the angle.

• Set the other end of the compass to a point most of the way up one of the lines and draw an arc across each line.

•Mark the points where the arc crosses each line.

Step-by-step explanation:

I hope it helps

have a nice day

#Captainpower

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Answer:

f(0,0)=ln19

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f(x,y)=ln(\frac{19x^2-x^2y^2+19y^2}{x^2+y^2}) is given as continuous function, so there exist lim_{(x,y)\rightarrow(0,0)}f(x,y) and it is equal to f(0,0).

Put x=rcosA annd y=rsinA

f(r,A)=ln(\frac{19r^2cos^2A-r^2cos^2A*r^2sin^2A+19r^2sin^2A}{r^cos^2A+r^2sin^2A})=ln(\frac{19r^2(cos^2A+sin^2A)-r^4cos^2Asin^a}{r^2(cos^2A+sin^2A)})

we know that cos^2A+sin^2A=1, so we have that

f(r,A))=ln(\frac{19r^2-r^4cos^2Asin^a}{r^2})=ln(19-r^2cos^2Asin^2A)

lim_{(x,y)\rightarrow(0,0)}f(x,y)=lim_{r\rightarrow0}f(r,A)=ln19

So f(0,0)=ln19.

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