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Recent questions tagged p265
Questions
If $A=\large\frac{1}{3}$$\begin{bmatrix} 2 & 2 & 1 \\-2 & 1 & 2 \\1 & -2 & 2 \end{bmatrix}$ prove that $A^{-1}=A^T$.
tnstate
class12
bookproblem
p265
objective
q23
modelpaper
jun-2006
mar-2007
jun-2008
oct-2008
asked
May 8, 2013
by
poojasapani_1
1
answer
If $\overrightarrow{a}$ and $\overrightarrow{b} $ include an angle $120^{\circ}$ and their magnitude are $2$ and $\sqrt{3}$ then $\overrightarrow{a} .\overrightarrow{b} $ is equal to
tnstate
class12
bookproblem
p265
objective
q22
modelpaper
jun-2007
jun-2009
asked
May 8, 2013
by
poojasapani_1
1
answer
If $\overrightarrow{a}$ and $\overrightarrow{b}$ are two unit vectors and $\theta $is the angle between them, then $(\overrightarrow{a}+\overrightarrow{b})$ is a unit vector if
tnstate
class12
bookproblem
p265
objective
q21
modelpaper
oct-2006
oct-2007
mar-2008
oct-2009
asked
May 8, 2013
by
poojasapani_1
1
answer
If $\overrightarrow{a}$ is a non-zero vector and $m$ is a non-zero scalar then $m\overrightarrow{a} $ is a unit vector if
tnstate
class12
bookproblem
p265
objective
q20
modelpaper
mar-2007
asked
May 8, 2013
by
poojasapani_1
1
answer
If the equation $-2x+y+z=i\;;x-2y+z=m\;;x+y-2z=n$ such that $i+m+n=0,$ then the system has
tnstate
class12
bookproblem
p265
objective
q19
modelpaper
mar-2006
jun-2006
asked
May 8, 2013
by
poojasapani_1
1
answer
If $ae^{x}+be^{y}=c; pe^{x}+qe^{y}=d $ and $\bigtriangleup_{1}=\begin{vmatrix} a&b \\p&q \end{vmatrix}; \bigtriangleup_{2}=\begin{vmatrix} c&b\\d&q \end{vmatrix}; \bigtriangleup_{3}=\begin{vmatrix} a&c\\p&d \end{vmatrix}$ than the value of $(x , y )$ is
tnstate
class12
bookproblem
p265
objective
q18
asked
May 7, 2013
by
poojasapani_1
0
answers
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