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Erw Trjerth
Subject: Maths
, asked on 14/3/18
Find the derivative of the following:
$1.{\mathrm{e}}^{\mathrm{x}\mathrm{log}\mathrm{a}}+{\mathrm{e}}^{\mathrm{a}\mathrm{log}\mathrm{x}}+{\mathrm{e}}^{\mathrm{a}\mathrm{log}\mathrm{a}}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}2.{\mathrm{log}}_{{3}^{\mathrm{x}}}+3\mathrm{log}{\mathrm{e}}^{\mathrm{x}}+2\mathrm{tan}\mathrm{x}$
Answer
1
B Ashwini
Subject: Maths
, asked on 14/3/18
how PROVE dIFFERENTIABILTY OF A FUNCTION AT A POINT??
Answer
1
Abhay
Subject: Maths
, asked on 13/3/18
Solve 10 and 12:
$10.f\left(x\right)=\left(\begin{array}{cc}x+1,if& x\ge 1\\ {x}^{2}+1,if& x1\end{array}\right)$
$12.f\left(x\right)=\left(\begin{array}{cc}{x}^{10}-1,& ifx\le 1\\ {x}^{2},& ifx1\end{array}\right)$
Answer
1
Abhay
Subject: Maths
, asked on 13/3/18
fx=x-5 continuous at x=5 and x=6
Answer
1
Hisham Moizuddin
Subject: Maths
, asked on 12/3/18
$x\sqrt{1+y}+y\sqrt{1+x}=0,\mathrm{P}.\mathrm{T},\frac{dy}{dx}=\frac{-1}{{\left(1+x\right)}^{2}}$
Answer
1
Yashashri Thakur
Subject: Maths
, asked on 9/3/18
Q6) ii
Answer
2
Hisham Moizuddin
Subject: Maths
, asked on 7/3/18
$Q.Forwhatvalueof\lambda ,isthefunctiondefinedby\phantom{\rule{0ex}{0ex}}f\left(x\right)=\left\{\begin{array}{l}\lambda \left({x}^{2}-2x\right):x\le 0\\ 4x+1:x0\end{array}\right.Whataboutcontinuityatx=1.$
Answer
1
Vibhav
Subject: Maths
, asked on 1/3/18
Let a Then limit n -> infinity (a)^(n) is 0
Let b > 1
Then limit n -> infinity (b)^(n) is infinity
Am I right????
Answer
1
Indu Nair
Subject: Maths
, asked on 26/2/18
can u please explain how the underlined differentiated part came:
Question 24:
If x=a sin 2t (1 + cos 2t) and y = b cos 2t (1-cos 2t), show that at
$t=\frac{\mathrm{\pi}}{4},\frac{dy}{dx},\frac{b}{a}t=\frac{\mathrm{\pi}}{4},\frac{dy}{dx}=\frac{b}{a}$
Answer
1
Indu Nair
Subject: Maths
, asked on 26/2/18
in this question how did sin
^{-1}
v appear?shouldn't it be cos
^{-1}
v?(Underlined part)
Answer
1
Aditi Sharma
Subject: Maths
, asked on 24/2/18
Plz Solve
Answer
1
Vibhav
Subject: Maths
, asked on 23/2/18
In the NCERT it is given that tanx is a conts function
However tanx at x=pi/2 gives different values at LHL and RHL
(At LHL it is +ve infinity and at RHL it is -ve infinity)
So how is tanx conts when it has different RHL and LHL values at pi/2????
Answer
3
Laieeqa
Subject: Maths
, asked on 22/2/18
Solve this :
5)
For what value of k, is the following function continuous at x = 0 ?
$F\left(x\right)=\left\{\begin{array}{l}\frac{1-\mathrm{cos}4x}{8{x}^{2}},ifx\ne 0\\ k,ifx=0\end{array}\right\}$
Answer
1
Chaitanya Kapoor
Subject: Maths
, asked on 21/2/18
Solve: y +d(xy)/dx? ? = x (sinx + logx)
Answer
1
Vibhav
Subject: Maths
, asked on 20/2/18
How to solve Q5
Answer
3
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$1.{\mathrm{e}}^{\mathrm{x}\mathrm{log}\mathrm{a}}+{\mathrm{e}}^{\mathrm{a}\mathrm{log}\mathrm{x}}+{\mathrm{e}}^{\mathrm{a}\mathrm{log}\mathrm{a}}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}2.{\mathrm{log}}_{{3}^{\mathrm{x}}}+3\mathrm{log}{\mathrm{e}}^{\mathrm{x}}+2\mathrm{tan}\mathrm{x}$

$10.f\left(x\right)=\left(\begin{array}{cc}x+1,if& x\ge 1\\ {x}^{2}+1,if& x1\end{array}\right)$

$12.f\left(x\right)=\left(\begin{array}{cc}{x}^{10}-1,& ifx\le 1\\ {x}^{2},& ifx1\end{array}\right)$

Let b > 1

Then limit n -> infinity (b)^(n) is infinity

Am I right????

Question 24:

If x=a sin 2t (1 + cos 2t) and y = b cos 2t (1-cos 2t), show that at $t=\frac{\mathrm{\pi}}{4},\frac{dy}{dx},\frac{b}{a}t=\frac{\mathrm{\pi}}{4},\frac{dy}{dx}=\frac{b}{a}$

^{-1}v appear?shouldn't it be cos^{-1}v?(Underlined part)However tanx at x=pi/2 gives different values at LHL and RHL

(At LHL it is +ve infinity and at RHL it is -ve infinity)

So how is tanx conts when it has different RHL and LHL values at pi/2????

5)For what value of k, is the following function continuous at x = 0 ?$F\left(x\right)=\left\{\begin{array}{l}\frac{1-\mathrm{cos}4x}{8{x}^{2}},ifx\ne 0\\ k,ifx=0\end{array}\right\}$