Advertisements
Advertisements
प्रश्न
Find the duplicate ratio of the following :
(a+b): (a2- b2)
Advertisements
उत्तर
(a+b): (a2- b2)
= `("a + b")^2 : ("a"^2 - "b"^2)^2`
= `("a + b")^2/(("a + b")^2 ("a - b")^2)`
= `1/("a" - "b")^2`
Duplicate ratio = 1 : `("a - b")^2`
APPEARS IN
संबंधित प्रश्न
Find the sub-triplicate ratio of the following :
`(64 "m"^3)/(729 "n"^3) : (216 "m"^3)/(27"n"^3)`
Find the reciprocal ratio of e following :
`1/45 : 1/54`
If `"a"/("b + c") = "b"/("c + a") = "c"/("a + b")` , then prove that a(b - c) + b(c-a) + c (a - b) = 0
If `(7"m" + 2"n")/(7"m" - 2"n") = 5/3` use properties of proportion to find:
(i) m : n
(ii) `("m"^2 + "n"^2)/("m"^2 - "n"^2)`
20 m : 70 m = Rs 8 : Rs ______.
The marked price of a table is Rs. 625 and its sale price is Rs. 500. What is the ratio of the sale price to the marked price?
In a floral design made from tiles dimensions 40 cm by 60 cm (See figure), find the ratios of the perimeter of shaded portion to the perimeter of the whole design.
Consider the statement: Ratio of breadth and length of a hall is 2 : 5. Complete the following table that shows some possible breadths and lengths of the hall.
|
Breadth of the hall (in metres) |
10 |
`square` |
40 |
|
Length of the hall (in metres) |
25 |
50 |
`square` |
If A : B = 7 : 5 and B : C = 7 : 5, then A : C is ______.
If (2x + 3y) : (3x + 2y) = 4 : 3; then x : y is ______.
