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2 years ago

10

What is sin 63°? Round your answer to the nearest hundredth

2 answers:

Advocard [28]2 years ago

6 0

Answer:

0.891

Step-by-step explanation:

sin(63º) = 0.891006..... ≈ 0.89

sergij07 [2.7K]2 years ago

3 0

0.891 is the answer to the nearest hundredth

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kirill115 [55]

Answer:

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Step-by-step explanation:

$f(x,y)=ln(\frac{19x^2-x^2y^2+19y^2}{x^2+y^2})$ 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

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

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So f(0,0)=ln19.

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Answer: a^2+b^2=c^2

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Ymorist [56]

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Step-by-step explanation:

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