Advertisements
Advertisements
प्रश्न
If a2 + b2 = 41 and ab = 4, find : a – b
बेरीज
Advertisements
उत्तर
(a − b)2 = a2 + b2 − 2ab
= 41 − 2(4)
= 41 − 8
= 33
∴ a − b = `sqrt33`
shaalaa.com
Application of Formulae
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
If a – b = 6 and ab = 16, find a2 + b2
If a2 + b2 = 29 and ab = 10, find : a − b
If a2 + b2= 10 and ab = 3; find : a – b
If `"a" - 1/"a"=4`, find : `"a"^2+1/"a"^2`
If a + b + c = 10 and a2 + b2 + c2 = 38, find : ab + bc + ca
Find : `"a"^3+1/"a"^3`, if `"a" +1/"a"=5`.
If `3"x"+1/(3"x")=3`, find : `9"x"^2+1/(9"x"^2)`
If `3"x"+1/(3"x")=3`, find : `27"x"^3+1/(27"x"^3)`
The sum of the squares of two numbers is 13 and their product is 6. Find:
(i) the sum of the two numbers.
(ii) the difference between them.
If 3x – 4y = 5 and xy = 3, find : 27x3 – 64y3.
