9:null 18:T539,undefined General form of an Ellipse: x^2a^2+y^2b^2=1, where both a and b should be positive. If: a>b, then the foci lies on the x-axis. b>a, then the foci lies on the y-axis.

We know that: ^c(radians) = 180 1^c=18022 7 = 57.27

x^2 2 - 3+y^2 2 - 3=1 Here, 2 and 3 are in radians. Let's convert them into degrees. x^2 (1.414 57.27) - (1.732 57.2)+y^2 (1.414 57.27) - (1.73 57.2) =1 x^2 (80.99) - (99.19) +y^2 (80.99) - (99.19)=1

We know that: ^c(radians) = 180 1^c=18022 7 = 57.27

x^2 2 - 3+y^2 2 - 3=1 Here, 2 and 3 are in radians. Let's convert them into degrees. x^2 (1.414 57.27) - (1.732 57.2)+y^2 (1.414 57.27) - (1.73 57.2) =1 x^2 (80.99) - (99.19) +y^2 (80.99) - (99.19)=1

As per the trigonometric quadrant ru<=, the value of (80.99) is positive [ 80.99 lies in the first quadrant] and so is (99.19) [ 99.19 lies in the second quadrant]. Also, (80.99) is positive [ 80.99 lies in the first quadrant] and (99.19) is negative [90.99 lies in the second quadrant]. ( (80.99) - (99.19)) is positive. Note that the value of (80.99) is greater than that of (99.19). How? The maximum value that can take is 1 when = 90. The ang<= 80.99 is closer to 90 in comparison to 99.19. Hence, the former is greater than the latter and their difference will be positive. As both a and b are positive, the given curve is an Ellipse. Also, as a is the difference of two values and b is the sum of two values, we can say that b > a. Therefore, the foci of this ellipse lies on the y axis. Hence, answer is option (a).10:[["$","title","0",{"children":"IPMAT Indore - The curve represented by the equation x^2 sqrt(2)- sqrt(3)+y^2 sqrt(2)- sqrt(3)=1 is | PYQs + Solutions | AfterBoards"}],["$","meta","1",{"name":"description","content":"$18"}],["$","link","2",{"rel":"manifest","href":"https://www.afterboards.in/manifest.json","crossOrigin":"$undefined"}],["$","meta","3",{"name":"keywords","content":"IPMAT Indore,MCQ,Geometry,Conic Sections"}],["$","meta","4",{"name":"robots","content":"index, follow"}],["$","meta","5",{"name":"category","content":"education"}],["$","meta","6",{"name":"google-site-verification","content":"google"}],["$","meta","7",{"property":"og:title","content":"IPMAT Indore - The curve represented by the equation x^2 sqrt(2)- sqrt(3)+y^2 sqrt(2)- sqrt(3)=1 is | PYQs + Solutions"}],["$","meta","8",{"property":"og:description","content":"$19"}],"$L1a","$L1b","$L1c","$L1d","$L1e","$L1f","$L20","$L21","$L22","$L23","$L24","$L25","$L26","$L27","$L28","$L29","$L2a","$L2b"]

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