Advertisements
Advertisements
рдкреНрд░рд╢реНрди
If ЁЭЫ╝ and ЁЭЫ╜ are the zeros of the quadratic polynomial f(t) = t2 − 4t + 3, find the value of `alpha^4beta^3+alpha^3beta^4`
рдЙрддреНрддрд░
Since ЁЭЫ╝ ЁЭСОЁЭСЫЁЭСС ЁЭЫ╜ are the zeroes of the polynomial f(t) = t2 − 4t + 3
Since α + β = 4
Product of zeroes αβ = 3
ЁЭР╗ЁЭСТЁЭСЫЁЭСРЁЭСТ α4β3 + α3β4 = α3β3(α + β) = [3]3[4] = 108
APPEARS IN
рд╕рдВрдмрдВрдзрд┐рдд рдкреНрд░рд╢реНрди
Prove relation between the zeros and the coefficient of the quadratic polynomial ax2 + bx + c
If α and β are the zeros of the quadratic polynomial f(x) = ax2 + bx + c, then evaluate `1/alpha-1/beta`
If α and β are the zeros of the quadratic polynomial f(x) = ax2 + bx + c, then evaluate :
`a(α^2/β+β^2/α)+b(α/β+β/α)`
If ЁЭЫ╝ and ЁЭЫ╜ are the zeros of the quadratic polynomial f(x) = x2 − 5x + 4, find the value of `1/alpha+1/beta-2alphabeta`
If the zeros of the polynomial f(x) = 2x3 − 15x2 + 37x − 30 are in A.P., find them.
Find the zeroes of the quadratic polynomial `(3x^2 ╦Ч x ╦Ч 4)` and verify the relation between the zeroes and the coefficients.
If f(x) = `x^4– 5x + 6" is divided by g(x) "= 2 – x2`
Check whether g(x) is a factor of p(x) by dividing polynomial p(x) by polynomial g(x),
where p(x) = x5 − 4x3 + x2 + 3x +1, g(x) = x3 − 3x + 1
If one of the zeroes of the cubic polynomial x3 + ax2 + bx + c is –1, then the product of the other two zeroes is ______.
For the following, find a quadratic polynomial whose sum and product respectively of the zeroes are as given. Also find the zeroes of these polynomials by factorisation.
`-2sqrt(3), -9`