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Assoli18 [71]
2 years ago
13

Find the polar coordinates for the point whose rectangular coordinates are (3,4). 6. Convert y x2 to polar form.

Mathematics
1 answer:
UkoKoshka [18]2 years ago
4 0

Answer:

1) Thus point (3,4) is represented as (5,53^{o}) in polar format.

2) Polar form is r=tan(\theta )sec(\theta)

Step-by-step explanation:

Any point (x,y) can be represented in polar format (r,θ) as

r=\sqrt{x^{2}+y^{2}}

\theta =tan^{-1}(\frac{y}{x})

Using the above formula

The point (3,4) is represented in polar format as

r=\sqrt{3^{2}+4^{2}}\\\\r=\sqrt{9+16}=5\\\\\theta =tan^{-1}(\frac{4}{3})=53^{o}

Thus point (3,4) is represented as (5,53^{o})

2)

The given curve is y=x^{2}

to convert it to polar form put

x=rcos(\theta )\\\\y=rsin(\theta )

Thus the curve becomes

rsin(\theta )=r^{2}\times cos^{2}(\theta )\\\\r=\frac{sin(\theta )}{cos^{2}(\theta )}\\\\r=tan(\theta )sec(\theta)

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