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Sakshi Naik
Subject: Maths
, asked on 24/4/18
Q4. if the function f;
$\left[1,\infty \right)\to \left(1,\infty \right)$
is defined by f (x) =
${2}^{x\left(x-1\right)}$
, then f
${}^{-1}$
(x) is
(A)
${\left(\frac{1}{2}\right)}^{x(x-1)}$
(B)
$\frac{1}{2}\left[1+\sqrt{1+4{\mathrm{log}}_{2}x}\right]$
(C)
$\frac{1}{2}\left(1-\sqrt{1+4{\mathrm{log}}_{2}x}\right)$
(D) not defined
Answer
1
Sakshi Naik
Subject: Maths
, asked on 23/4/18
Pls solve 1st que
Answer
2
Sakshi Naik
Subject: Maths
, asked on 23/4/18
Pls solve 11 que
Answer
1
Sakshi Naik
Subject: Maths
, asked on 22/4/18
Pls solve 7 question...it's urgent...
Answer
1
Sakshi Naik
Subject: Maths
, asked on 22/4/18
Range of 2x+|cosx|
Answer
1
Sakshi Naik
Subject: Maths
, asked on 22/4/18
Pls solve 2nd question
Answer
3
Kshitiz Anand
Subject: Maths
, asked on 21/4/18
For q.no (iv), find the inverse of the given function
Q(v) f (x) =
$\left\{\begin{array}{ccc}\mathrm{x}& \mathrm{x}<& 1\\ {\mathrm{x}}^{2}& 1\le & \mathrm{x}\le 4\\ 8\sqrt{\mathrm{x}},& \mathrm{x}>& 4\end{array}\right.$
Answer
2
Shashwat Pathak
Subject: Maths
, asked on 20/4/18
find the value of (log100 base 2 - log 10 base 2) if log 2 base 10 = 0.3?
Answer
1
Raj Aryan
Subject: Maths
, asked on 20/4/18
Q. f = 1R
$\to $
1R defined by f(x) =
$\frac{{a}^{2x}}{{a}^{2x}+2}$
Show that f(x) + f(1-x) = 1
Answer
1
Ms Eccentric
Subject: Maths
, asked on 18/4/18
What is three dimensional space ?
Answer
1
Ayan
Subject: Maths
, asked on 17/4/18
Solve this:
$122.{2}^{x}+{2}^{\left|x\right|}\u2a7e2\sqrt{2}.\phantom{\rule{0ex}{0ex}}123.{\left(0.2\right)}^{\frac{2x-3}{x-2}}5.\phantom{\rule{0ex}{0ex}}124.{\left(\frac{1}{5}\right)}^{\frac{2x+1}{1-x}}{\left(\frac{1}{5}\right)}^{-3}\phantom{\rule{0ex}{0ex}}$
Answer
1
Kshitiz Anand
Subject: Maths
, asked on 16/4/18
Qno 18 plz solve both parts and provide a detailed solution
Answer
1
Ms Eccentric
Subject: Maths
, asked on 16/4/18
How to find the roots of x
^{3}
+ 6x
^{ 2 }
+ 11x + 6 without substituting values and then using quadratic polynomial ? Is there any short cuts to find it faster? Please do not provide any links or hints.
Answer
1
Kshitiz Anand
Subject: Maths
, asked on 15/4/18
Find the domain and range of
$f\left(x\right)={\mathrm{sin}}^{-1}\left(\mathrm{log}\left[x\right]\right)+\mathrm{log}\left({\mathrm{sin}}^{-1}\left[x\right]\right)$
, where [.]
denotes
.
Answer
1
Kshitiz Anand
Subject: Maths
, asked on 15/4/18
Qno12 find its range
Answer
1
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What are you looking for?

(A) ${\left(\frac{1}{2}\right)}^{x(x-1)}$

(B) $\frac{1}{2}\left[1+\sqrt{1+4{\mathrm{log}}_{2}x}\right]$

(C) $\frac{1}{2}\left(1-\sqrt{1+4{\mathrm{log}}_{2}x}\right)$

(D) not defined

Q(v) f (x) = $\left\{\begin{array}{ccc}\mathrm{x}& \mathrm{x}<& 1\\ {\mathrm{x}}^{2}& 1\le & \mathrm{x}\le 4\\ 8\sqrt{\mathrm{x}},& \mathrm{x}>& 4\end{array}\right.$

Show that f(x) + f(1-x) = 1

$122.{2}^{x}+{2}^{\left|x\right|}\u2a7e2\sqrt{2}.\phantom{\rule{0ex}{0ex}}123.{\left(0.2\right)}^{\frac{2x-3}{x-2}}5.\phantom{\rule{0ex}{0ex}}124.{\left(\frac{1}{5}\right)}^{\frac{2x+1}{1-x}}{\left(\frac{1}{5}\right)}^{-3}\phantom{\rule{0ex}{0ex}}$

^{3}+ 6x^{ 2 }+ 11x + 6 without substituting values and then using quadratic polynomial ? Is there any short cuts to find it faster? Please do not provide any links or hints.