Home
Class 8
MATHS
If x(1), x(2) are two variables of x and...

If `x_(1), x_(2)` are two variables of x and `y_(1) , y_(2)` that of y corresponding to the values vary inversely then
a. `x_(1) y_(1) = x_(2) y_(2)`
b. `(x_(1))/(y_(1))= (x_(2))/(y_(2))`
c. `x_(1) x_(2) = y_(1)y_(2)`
c. none

A

`x_(1) y_(1) = x_(2) y_(2)`

B

`(x_(1))/(y_(1))= (x_(2))/(y_(2))`

C

`x_(1) x_(2) = y_(1)y_(2)`

D

none

Text Solution

Verified by Experts

The correct Answer is:
A, B
Promotional Banner

Topper's Solved these Questions

  • DIRECT AND INVERSE PROPORTIONS

    NAND LAL PUBLICATION|Exercise ADDITIONAL QUESTIONS FOR PRACTICE( Fill in the blank )|12 Videos

  • DIRECT AND INVERSE PROPORTIONS

    NAND LAL PUBLICATION|Exercise ADDITIONAL QUESTIONS FOR PRACTICE( Short Answer Type Questions ) |9 Videos

  • DIRECT AND INVERSE PROPORTIONS

    NAND LAL PUBLICATION|Exercise EXERCISE 13.2|16 Videos

  • DATA HANDLING

    NAND LAL PUBLICATION|Exercise SAMPLE PAPER FOR PRACTICE |10 Videos

  • EXPONENTS AND POWER

    NAND LAL PUBLICATION|Exercise SAMPLE PAPER FOR PRACTICE |22 Videos

Similar Questions

Explore conceptually related problems

If x_(1), x_(2), x_(3) as well as y_(1), y_(2), y_(3) are in GP, with the same common ratio, then the points (x_(1),y_(1)), (x_(2),y_(2)) and (x_(3), y_(3))

If x_(1),x_(2) "and" y_(1),y_(2) are the roots of the equations 3x^(2) -18x+9=0 "and" y^(2)-4y+2=0 the value of the determinant |{:(x_(1)x_(2),y_(1)y_(2),1),(x_(1)+x_(2),y_(1)+y_(2),2),(sin(pix_(1)x_(2)),cos (pi//2y_(1)y_(2)),1):}| is

Find the co-ordinates of the centroid of the triangle whose vertices are (x_(1),y_(1),z_(1)), (x_(2),y_(1),z_(2)) and (x_(3),y_(3),z_(3)) .

If the tangent at (x_(1),y_(1)) to the curve x^(3)+y^(3)=a^(3) meets the curve again at (x_(2),y_(2)) , then (x_(2))/(x_(1))+(y_(2))/(y_(1)) is equal to

If A(x_(1), y_(1)), B(x_(2), y_(2)) and C (x_(3), y_(3)) are the vertices of a Delta ABC and (x, y) be a point on the internal bisector of angle A, then prove that b|(x,y,1),(x_(1),y_(1),1),(x_(2),y_(2),1)|+c|(x,y,1),(x_(1),y_(1),1),(x_(3),y_(3),1)|=0 where, AC = b and AB = c.

Show that the equation of the tangent to the parabola y^(2) = 4 ax at (x_(1), y_(1)) is y y_(1) = 2a(x + x_(1)) .

The three points (x_(1), y_(1), z_(1)), (x_(2), y_(2), z_(2)), (x_(3), y_(3), z_(3)) are collinear when…………