Advertisements
Advertisements
Question
If one root of the equation` 3x^2-10x+3=0 is 1/3` then the other root is
(a) `-1/3` (b) `1/3` (c)`-3` (d)`3`
Solution
(d)3
Given :
`3x^2-10x+3=0`
One root of the equation is `1/3`
Let the other root be . α
Product of the roots = `c/a`
=`1/3xxα=3/3`
=`α=3`
APPEARS IN
RELATED QUESTIONS
The length of a rectangular field exceeds its breadth by 8 m and the area of the field is `240 m^2` . The breadth of the field is
(a) 20 m (b) 30 m (c) 12 m (d) 16 m
Find the solution of the quadratic equation `3sqrt3x^2+10x+sqrt3=0`
Solve` 2x^2+ax-a^2=0`
Write any two quadratic equations.
Decide whether the following equation is quadratic equation or not.
y2 = 5y – 10
For the quadratic equation x2 + 10x – 7 = 0, the value of a, b, c are ______.
When the son will be as old as his father today, the sum of their ages then will be 126 years. when the father was as old his son is today. The sum of their ages was 38 years. Find their presents ages.
A boat goes 30 km upstream and 44 km downstream in 10 hours. In 13 hours, it can go 40 km upstream and 55 km downstream. Determine the speed of the stream and that of the boat in still water.
Solve for x : `1/(2a + b + 2x) =1/(2a) + 1/b + 1/(2x); x ≠ 0, x ≠ (−2a −b)/2`, a, b ≠ 0
If 460 is divided by a natural number, then quotient is 2 more than nine times the divisor and remainder is 5. Find the quotient and divisor.
