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Recent questions tagged q11
Questions
The corner points of the feasible region determined by the following system of linear inequalities: 2x + y ≤ 10, x + 3y ≤ 15, x, y ≥ 0 are (0, 0), (5, 0), (3, 4) and (0, 5). Let Z = px + qy, where p, q > 0. The condition on p and q so that the maximum of Z occurs at both (3, 4) and (0, 5) is (A) p = q (B) p = 2q (C) p = 3q (D) q = 3p?
cbse
class12
bookproblem
ch12
sec2
q11
p520
sec-a
easy
math
asked
Nov 16, 2012
by
fingeazy
1
answer
Find \( \frac {dy}{dx} \) in the following: $y = cos^{-1} \left(\frac{1 - x^2}{1 + x^2}\right), 0 < x < 1 $
cbse
class12
bookproblem
ch5
sec3
q11
p169
exercise5-3
sec-a
medium
math
asked
Nov 15, 2012
by
thanvigandhi_1
1
answer
Consider\(f:\{1,2,3\} \to\{a,b,c\}\) given by \(f(1)=a, \,f(2)=b\) and \(f(3)=c\). Find \(f^{-1} \) and show that \((f^{-1})^{-1} = f\).
cbse
class12
bookproblem
ch1
sec3
q11
p19
easy
sec-a
math
asked
Nov 15, 2012
by
vaishali.a
1
answer
Let $f: R \to R $, be defined as $f(x) = x^4$. Choose the correct answer.
cbse
class12
bookproblem
ch1
sec2
q11
p11
easy
sec-a
math
asked
Nov 9, 2012
by
vaishali.a
1
answer
Find all points of discontinuity of $f$, where $f$ is defined by $ f(x) = \left\{ \begin{array} {1 1} x^3-3 ,& \quad\text{ if $ x $ \(\leq 2\)}\\ x^2+1,& \quad \text{if $x$ > 2}\\ \end{array} \right. $
cbse
class12
bookproblem
ch5
sec1
q11
p159
sec-b
easy
math
asked
Nov 9, 2012
by
thanvigandhi_1
1
answer
The relation $R$ in the set $A$ of points in a plane given by $R = \{(P, Q)$ : distance of the point $P$ from the origin is same as the distance of the point $Q$ from the origin $\}$, is
cbse
class12
bookproblem
ch1
sec1
q11
p6
easy
sec-a
math
asked
Nov 8, 2012
by
vaishali.a
1
answer
Find the coordinates of the point where the line through (5, 1, 6) and (3, 4, 1) crosses the ZX-plane.
cbse
class12
bookproblem
ch11
misc
p498
q11
sec-b
easy
math
asked
Nov 2, 2012
by
balaji.thirumalai
1
answer
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