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The curve represents by the equationx^(2...

The curve represents by the equation`x^(2)/(sinsqrt2-cossqrt3)+y^(2)/(sinsqrt3-cossqrt2)=1` is

A

(a) an ellipse with foci on X-axis

B

(b) an ellipse on focii Y-axis

C

(c) a hyperbola with foci on X-axis

D

(d) an hyperbola with foci on Y-axis

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The correct Answer is:
To determine the nature of the curve represented by the equation \[ \frac{x^2}{\sin(\sqrt{2}) - \cos(\sqrt{3})} + \frac{y^2}{\sin(\sqrt{3}) - \cos(\sqrt{2})} = 1, \] we will analyze the denominators and check if they satisfy the conditions for an ellipse. ### Step 1: Calculate \(\sin(\sqrt{2}) - \cos(\sqrt{3})\) 1. **Find \(\sin(\sqrt{2})\)**: - Using a calculator, we find \(\sqrt{2} \approx 1.414\). - Therefore, \(\sin(\sqrt{2}) \approx \sin(1.414) \approx 0.9877\). 2. **Find \(\cos(\sqrt{3})\)**: - Using a calculator, we find \(\sqrt{3} \approx 1.732\). - Therefore, \(\cos(\sqrt{3}) \approx \cos(1.732) \approx -0.1874\). 3. **Calculate \(\sin(\sqrt{2}) - \cos(\sqrt{3})\)**: \[ \sin(\sqrt{2}) - \cos(\sqrt{3}) \approx 0.9877 - (-0.1874) = 0.9877 + 0.1874 = 1.1751. \] ### Step 2: Calculate \(\sin(\sqrt{3}) - \cos(\sqrt{2})\) 1. **Find \(\sin(\sqrt{3})\)**: - \(\sin(\sqrt{3}) \approx \sin(1.732) \approx 0.9878\). 2. **Find \(\cos(\sqrt{2})\)**: - \(\cos(\sqrt{2}) \approx \cos(1.414) \approx 0.1559\). 3. **Calculate \(\sin(\sqrt{3}) - \cos(\sqrt{2})\)**: \[ \sin(\sqrt{3}) - \cos(\sqrt{2}) \approx 0.9878 - 0.1559 = 0.8319. \] ### Step 3: Analyze the equation Now we can rewrite the equation with the calculated values: \[ \frac{x^2}{1.1751} + \frac{y^2}{0.8319} = 1. \] ### Step 4: Determine the nature of the curve The equation is in the standard form of an ellipse: \[ \frac{x^2}{a^2} + \frac{y^2}{b^2} = 1, \] where \(a^2 = 1.1751\) and \(b^2 = 0.8319\). Since \(a^2 > b^2\), the major axis is along the x-axis. ### Conclusion Thus, the curve represented by the given equation is an **ellipse** with its major axis along the x-axis.
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ARIHANT MATHS ENGLISH-ELLIPSE-Exercise (Single Option Correct Type Questions)
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  4. The maximum distance of the centre of the ellipse (x^(2))/(16) +(y^(2)...

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  5. S and T are the foci of the ellipse x^2/a^2+y^2/b^2 = 1 and B is an en...

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  6. A circle of radius 5/sqrt2 is concentric with the ellipse x^(2)/16+y^(...

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  7. Consider the particle travelling clockwise on the elliptical path x^2/...

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  8. C is the centre of the ellipse x^(2)/16+y^(2)/9=1 and A and B are two ...

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  9. Let (alpha,beta) be a point from which two perpendicular tangents can ...

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  10. If a=[t^(2)-3t+4] and b=[3+5t], where [.] donates the greatest integer...

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  11. If the line x+2y+4=0 cutting the ellipse (x^(2))/(a^(2))+(y^(2))/(b^(2...

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  12. An arc of a bridge is semi-elliptical with the major axis horizonta...

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  13. A tangent to the ellipse (x^2)/(25)+(y^2)/(16)=1 at any point P meets ...

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  14. If tangents are drawn from any point on the circle x^(2) + y^(2) = 25...

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  15. the equation of the chord of contact of the pair of tangents drawn to ...

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  16. x-2y+4=0 is a common tangent to y^2=4x and x^4/4+y^2/b^2=1. Then the v...

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  17. Find a point on the curve x^(2)+2y^(2)=6 whose distance from the line ...

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  18. From a point on the axis of x common tangents are drawn to the parabol...

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  20. A parabola is drawn whose focus is one of the foci of the ellipse x^2...

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