$r^{2} = b^{2} \cos 2 θ$ এর কার্তেসীয় সমীকরণ নিম্নের কোনটি?

Created: 2 years ago | Updated: 6 months ago

Updated: 6 months ago

x^{2} + y^{2} = b^{2} (x^{2} - y^{2})

x^{2} - y^{2} = b^{2} (x^{2} + y^{2})

x^{2} + y^{2} = b^{2} (x^{2} - y^{2})

x^{2} - y^{2} = b^{2} (x^{2} + y^{2})

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Best Ans:

6 months ago

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Joy Barua Tonmoy

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