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The distance between the points (m,-n) a...

The distance between the points (m,-n) and (-m,n) is
(A) `sqrt(m^2 + n^2)`
(B) m+n
(C) 2`sqrt(m^2+n^2)`
(D) `sqrt(2m^2 +2n^2)`

A

`sqrt(m^(2)+n^(2))`

B

`m+n`

C

`2sqrt(m^(2)+n^(2))`

D

`sqrt(2m^(2) + 2n^(2))`

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X BOARD PREVIOUS YEAR PAPER ENGLISH-CBSE BOARDS 2020-QUESTION
  1. Which of the following in not an A .P .?

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  2. In figure, From an external point P, Two tangents PQ and PR are...

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  3. The distance between the points (m,-n) and (-m,n) is (A) sqrt(m^2 + ...

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  4. A quadratic polynomial, whose zeroes are -3 and 4, is

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  5. In figure ABC is an isosceles triangle , right angled at C . Th...

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  6. The point on the axis which is equidistant from (-4,0) and (10,0) is ,...

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  7. The centre of a circle whose end points of a diameter are (-6,3) and (...

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  8. The pair of linear equations (3x)/(2)+(5y)/(3)=7 and 9x+10y=14 is

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  9. In figure PQ is tangent to the circle with centre at O at the ...

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  10. The radius of a sphere (in cm) whose volume is 12pi cm^3, is (A) 3 ...

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  11. Can (x^2 - 1) be a remainder while dividing x^4 - 3x^2 + 5x -9 by x^2 ...

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  12. Find the sum of the first 100 natural numbers.

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  13. Evaluate : 2 sec 30^(@) xx tan 60^(@)

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  14. The angle elevation of the top of a tower from a point C on the ground...

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  15. In Figure, a quadrilateral ABCD is drawn to circumscribe a circle . ...

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  16. Find the perimeter of DeltaABC, if AP=12 cm

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  17. How many cubes of side 2 cm can be made from a solid cube of side 10 c...

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  18. In the given figure, DE||AC and DF||AE. Prove that (BF)/(FE)=(BE)/(E...

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  19. Show that 5+2sqrt(7) is an irrational number, where sqrt(7) is given t...

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  20. Check whether 12^n can end with the digit 0 for any natural number n.

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