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Atreya
Subject: Maths
, asked on 23/5/18
17th
$\mathbf{17}\mathbf{.}\mathbf{}Thevalueofpandq(p\ne 0,q\ne 0)forwhichp,qaretherootsoftheequation{x}^{2}+px+qab=0are\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\left(a\right)p=1,q=-2\left(b\right)p=-1,q=-2\phantom{\rule{0ex}{0ex}}\left(c\right)p=-1,q=2\left(d\right)p=1,q=2$
Answer
1
Atreya
Subject: Maths
, asked on 23/5/18
16th.one fast
Answer
1
Atreya
Subject: Maths
, asked on 23/5/18
Q.10. The number of solutions of
${x}^{2}+\left|x-1\right|=1$
is
(a) 0
(b) 1
(c) 2
(d) 3
Answer
2
Champ Jee
Subject: Maths
, asked on 21/5/18
The value of
${\left(0.16\right)}^{{\mathrm{log}}_{2.5}}\left(\frac{1}{3}+\frac{1}{{3}^{2}}+\frac{1}{{3}^{3}}+...\mathrm{to}\infty \right)$
is
(a) 0.16 (b) 1 (c) 0.4 (d) 4
Answer
1
Om
Subject: Maths
, asked on 18/5/18
Sir/ma'am
Question 19 to 21
Answer
5
Asheesh Kumar
Subject: Maths
, asked on 17/5/18
Please solve this question of quadratic-:
Q.1 A quadratic polynomial f (x)= x
^{2}
+ ax +b is formed with one of its zeros being
$\frac{4+3\sqrt{3}}{2+\sqrt{3}}$
where a and b are integers. Also g (x) = x
^{4}
+ 2x
^{3}
-10x
^{2}
+ 4x- 10 is a biquadratic polynomial such that g
$\left(\frac{4+3\sqrt{3}}{2+\sqrt{3}}\right)=\mathrm{c}\sqrt{3}+\mathrm{b}$
where c and d are also integers. Find the values of a. b. c and d.
Answer
1
Diksha Shrivastava
Subject: Maths
, asked on 16/5/18
Solve this by binomial theorem:
(1-i)^4
Answer
1
Diksha Shrivastava
Subject: Maths
, asked on 16/5/18
Can you solve question no.8 from page no.104 by binomial theorem? Please proVide the solution!
Answer
1
Atreya
Subject: Maths
, asked on 12/5/18
4th one with sol please
Answer
1
ðŸ˜Žutkarsh Shukla
Subject: Maths
, asked on 25/4/18
Find the value of :
Q.
${\left[\frac{{x}^{b}}{{x}^{c}}\right]}^{\frac{1}{bc}}.{\left[\frac{{x}^{c}}{{x}^{a}}\right]}^{\frac{1}{ca}}.{\left[\frac{{x}^{a}}{{x}^{b}}\right]}^{\frac{1}{ab}}$
Answer
1
Nihar Barbhaya
Subject: Maths
, asked on 18/4/18
Pls expert help in question no. 7
7. If
$x+iy=\sqrt{\frac{4+4i}{5+12i}}then169({x}^{2}+{y}^{2}{)}^{2}is$
1) 5
2) 10
3) 25
Answer
2
Archana
Subject: Maths
, asked on 18/4/18
Q. The principal of
${i}^{i}$
is equal to -
$a.eb.{e}^{-\mathrm{\pi}/2}c.{e}^{-3\mathrm{\pi}/2}d.noneofthese$
Explain stepwise with formulas if any.
Answer
1
Archana
Subject: Maths
, asked on 18/4/18
explain step wise...don't skip any step !!
Q.4. If
$lm\left(\frac{2z+1}{iz+1}\right)=-2$
, then the locus of the point representing z in the complex plane is
(a) a circle
(b) a straight line
(c) a parabola
(d) None of these
Answer
1
Shashwat Pathak
Subject: Maths
, asked on 16/4/18
Let a and c be prime numbers and 'b' an integer. Given that the quadratic equation ax^2+bx+c =0 has rational roots, show tha one of the root is independent of the coefficients. Find the 2 roots.
Answer
1
Amitesh Kumar
Subject: Maths
, asked on 14/4/18
The greatest integral value of
c
so that both the roots of the equation
$\left(c-5\right){x}^{2}-2cx+\left(c-4\right)=0$
are positive, one root is less than 2 and other root is lying between 2 and 3 is :
(1) 22 (2) 23 (3) 24 (4) 25
Answer
1
1
2
3
4
5
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What are you looking for?

$\mathbf{17}\mathbf{.}\mathbf{}Thevalueofpandq(p\ne 0,q\ne 0)forwhichp,qaretherootsoftheequation{x}^{2}+px+qab=0are\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\left(a\right)p=1,q=-2\left(b\right)p=-1,q=-2\phantom{\rule{0ex}{0ex}}\left(c\right)p=-1,q=2\left(d\right)p=1,q=2$

(a) 0

(b) 1

(c) 2

(d) 3

(a) 0.16 (b) 1 (c) 0.4 (d) 4

Question 19 to 21

Q.1 A quadratic polynomial f (x)= x

^{2}+ ax +b is formed with one of its zeros being $\frac{4+3\sqrt{3}}{2+\sqrt{3}}$ where a and b are integers. Also g (x) = x^{4}+ 2x^{3}-10x^{2}+ 4x- 10 is a biquadratic polynomial such that g $\left(\frac{4+3\sqrt{3}}{2+\sqrt{3}}\right)=\mathrm{c}\sqrt{3}+\mathrm{b}$ where c and d are also integers. Find the values of a. b. c and d.(1-i)^4

Q. ${\left[\frac{{x}^{b}}{{x}^{c}}\right]}^{\frac{1}{bc}}.{\left[\frac{{x}^{c}}{{x}^{a}}\right]}^{\frac{1}{ca}}.{\left[\frac{{x}^{a}}{{x}^{b}}\right]}^{\frac{1}{ab}}$

7. If $x+iy=\sqrt{\frac{4+4i}{5+12i}}then169({x}^{2}+{y}^{2}{)}^{2}is$

1) 5

2) 10

3) 25

Q. The principal of ${i}^{i}$ is equal to -

$a.eb.{e}^{-\mathrm{\pi}/2}c.{e}^{-3\mathrm{\pi}/2}d.noneofthese$

Explain stepwise with formulas if any.

Q.4. If $lm\left(\frac{2z+1}{iz+1}\right)=-2$, then the locus of the point representing z in the complex plane is

(a) a circle

(b) a straight line

(c) a parabola

(d) None of these

cso that both the roots of the equation $\left(c-5\right){x}^{2}-2cx+\left(c-4\right)=0$ are positive, one root is less than 2 and other root is lying between 2 and 3 is :(1) 22 (2) 23 (3) 24 (4) 25