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Prithika
Subject: Maths
, asked on 23/5/18
12th q
Q.12. Show that the equation
$2\left({a}^{2}+{b}^{2}\right){x}^{2}+2\left(a+b\right)x+1=0$
has no real roots.
Answer
1
Prithika
Subject: Maths
, asked on 23/5/18
7th q
Q.7. Find the condition that one root of the equation
$a{x}^{2}+bx+c=0$
may be double of the other.
Answer
1
Prithika
Subject: Maths
, asked on 23/5/18
19th question
$\mathbf{19}\mathbf{.}\mathbf{}Iftheratiooftherootsoftheequationa{x}^{2}+bx+c=0isr,thenprovethat\frac{{\left(r+1\right)}^{2}}{r}=\frac{{b}^{2}}{ac}.$
Answer
1
Prithika
Subject: Maths
, asked on 23/5/18
Q.18. If the equation
$a{x}^{2}+bx+c=0andc{x}^{2}+bx+a=0$
may have a common root, then prove that a + b + c or a - b + c = 0.
Answer
2
Prithika
Subject: Maths
, asked on 23/5/18
I3 th
Q.13.
$x=\frac{2}{3-{\displaystyle \frac{2}{3-{\displaystyle \frac{2}{3-{\displaystyle \frac{2}{3-{\displaystyle \frac{2}{3-x}}}}}}}}}$
, find the possible values of x in the given equation.
Answer
1
Prithika
Subject: Maths
, asked on 23/5/18
6thq
Q.6. If the roots of
${x}^{2}-px+q=0$
are two consecutive integers. Prove that
${p}^{2}=4q+1$
Answer
1
Prithika
Subject: Maths
, asked on 23/5/18
3rd:
3. Solve for x: (x-1)(x+3)(x-2)(x-6)+36=0
Answer
2
Prithika
Subject: Maths
, asked on 18/5/18
Pl explain how f(x) is positive when d>0 and a>0
Answer
2
Prithika
Subject: Maths
, asked on 18/5/18
Pl explain how f(x) is positive when d 0
Answer
1
Aryan Shandilya
Subject: Maths
, asked on 18/5/18
Find the solution to these quadratic equation.
$i)a{x}^{2}{y}^{2}-axyz+{a}^{2}x{z}^{2}\phantom{\rule{0ex}{0ex}}ii){\left(a-b\right)}^{4}+{\left(b-a\right)}^{3}\phantom{\rule{0ex}{0ex}}iii)2{a}^{3}{b}^{2}-4{a}^{2}{b}^{3}+8a{b}^{4}-16{b}^{5}\phantom{\rule{0ex}{0ex}}iv){\left(2x-3\right)}^{3}-8x+12$
Answer
1
Bhavya Biswas
Subject: Maths
, asked on 17/5/18
Find the values of k for which the quadratic equation has equal roots (k-12)X2 + 2(k-12)x + 2=0
Answer
1
Avani Chaturvedi
Subject: Maths
, asked on 17/5/18
Solve this and no links plz
Q.7. A passenger trains takes 2 hours less for a journey of 300 km. If its speed is increased by 5 km/h from its usual speed, find the
Answer
1
Avani Chaturvedi
Subject: Maths
, asked on 17/5/18
Solve this and no links plz
Q.6. Solve for x :
$\frac{x-1}{x-2}+\frac{{\displaystyle x-3}}{{\displaystyle x-4}}=\frac{10}{3}\left(x\ne 2,4\right)$
Answer
1
Avani Chaturvedi
Subject: Maths
, asked on 17/5/18
Solve this and no links plz
Q.5. Given that
$x-\sqrt{5}$
is a factor of polynomial
${x}^{3}-3\sqrt{5}{x}^{2}-5x+15\sqrt{5}$
, then find all the zeroes of the polynomial.
Answer
1
Avani Chaturvedi
Subject: Maths
, asked on 17/5/18
Plz answer this question fast and no links plz
Answer
1
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Q.12. Show that the equation $2\left({a}^{2}+{b}^{2}\right){x}^{2}+2\left(a+b\right)x+1=0$ has no real roots.

Q.7. Find the condition that one root of the equation $a{x}^{2}+bx+c=0$ may be double of the other.

$\mathbf{19}\mathbf{.}\mathbf{}Iftheratiooftherootsoftheequationa{x}^{2}+bx+c=0isr,thenprovethat\frac{{\left(r+1\right)}^{2}}{r}=\frac{{b}^{2}}{ac}.$

Q.13. $x=\frac{2}{3-{\displaystyle \frac{2}{3-{\displaystyle \frac{2}{3-{\displaystyle \frac{2}{3-{\displaystyle \frac{2}{3-x}}}}}}}}}$, find the possible values of x in the given equation.

Q.6. If the roots of ${x}^{2}-px+q=0$ are two consecutive integers. Prove that ${p}^{2}=4q+1$

3. Solve for x: (x-1)(x+3)(x-2)(x-6)+36=0

$i)a{x}^{2}{y}^{2}-axyz+{a}^{2}x{z}^{2}\phantom{\rule{0ex}{0ex}}ii){\left(a-b\right)}^{4}+{\left(b-a\right)}^{3}\phantom{\rule{0ex}{0ex}}iii)2{a}^{3}{b}^{2}-4{a}^{2}{b}^{3}+8a{b}^{4}-16{b}^{5}\phantom{\rule{0ex}{0ex}}iv){\left(2x-3\right)}^{3}-8x+12$

Q.7. A passenger trains takes 2 hours less for a journey of 300 km. If its speed is increased by 5 km/h from its usual speed, find the

Q.6. Solve for x : $\frac{x-1}{x-2}+\frac{{\displaystyle x-3}}{{\displaystyle x-4}}=\frac{10}{3}\left(x\ne 2,4\right)$

Q.5. Given that $x-\sqrt{5}$ is a factor of polynomial ${x}^{3}-3\sqrt{5}{x}^{2}-5x+15\sqrt{5}$, then find all the zeroes of the polynomial.