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Let A-=(3,-4),B-=(1,2)dot Let P-=(2k-1,2...

Let `A-=(3,-4),B-=(1,2)dot` Let `P-=(2k-1,2k+1)` be a variable point such that `P A+P B` is the minimum. Then `k` is 7/9 (b) 0 (c) 7/8 (d) none of these

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CENGAGE ENGLISH-CONIC SECTIONS-All Questions
  1. Each equation contains statements given in two columns which have to b...

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  2. A straight line passing through P(3,1) meets the coordinate axes at Aa...

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  3. Let A-=(3,-4),B-=(1,2)dot Let P-=(2k-1,2k+1) be a variable point such ...

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  4. If |{:(x1,,y1,,1),(x2,,y2,,1),(x3,,y3,,1):}|=|{:(a1,,b1,,1),(a2,,b2,,1...

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  5. O P Q R is a square and M ,N are the middle points of the sides P Qa n...

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  6. Which of the following sets of points form an equilateral triangle? (...

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  7. A particle p moves from the point A(0,4) to the point 10 ,-4) . The pa...

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  8. A B C is an isosceles triangle. If the coordinates of the base are B(1...

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  9. If two vertices of a triangle are (1,3) and (4,-1) and the area of tri...

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  10. Number of points with integral co-ordinates that lie inside a triangle...

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  11. Let O(0,0),P(3,4), and Q(6,0) be the vertices of triangle O P Q . The ...

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  12. The orthocentre of the triangle with vertices (0,0),(3,4), and (4,0) ...

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  13. The area of a triangle is 5. Two of its vertices are A(2,1) and B(3...

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  14. Statement 1 : If the vertices of a triangle are having rational coordi...

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  15. If A(1,p^2),B(0,1) and C(p ,0) are the coordinates of three points, th...

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  16. If the point (x1+t(x2-x1),y1+t(y2-y1)) divides the join of (x1,y1) and...

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  17. O P Q R is a square and M ,N are the midpoints of the sides P Q and Q ...

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  18. If sum(i-1)^4(x1^2+y 1^2)lt=2x1x3+2x2x4+2y2y3+2y1y4, the points (x1, y...

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  19. In an acute triangle A B C , if the coordinates of orthocentre H are (...

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  20. Consider the points O(0,0),A(0,1), and B(1,1) in the x-y plane. Suppos...

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