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Vedmedyk [2.9K]
3 years ago
14

Someone plsssssss help me with this​

Mathematics
2 answers:
aleksklad [387]3 years ago
6 0

Answer:

99 ÷ 9 equal 11

Step-by-step explanation:

99 ÷ 9 = 11. yeah

Yakvenalex [24]3 years ago
3 0

Answer:

(9+9)÷9+9

Step-by-step explanation:

18÷9=2

2+9=11

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ANSWER:

r = \frac{1}{cos2(theta)}

Explaination:

Convert the given curve into the the polar form.

x = rcosθ

y = rsinθ

in f(x,y) = (x²-y²) - √(x²+y²) = 0

put the values of x & y in given curve equation.

We get at,

g(r,θ) = (r²cos²θ - r²sin²θ) - √(r²cos²θ + r²sin²θ) = 0

g(r,θ) = r²(cos²θ - sin²θ) - √r² = 0

We know that,

cos²θ - sin²θ = cos2θ

g(r,θ) = r²(cos2θ) - r = 0

Solve for r

Finally we get:

r = \frac{1}{cos2(theta)}

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