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Recent questions tagged p273
ASK
The point of intersection of the tangents at $t_{1}=t $ and $t_{2}=3t$ to the parabola $y^{2}=8x $ is
tnstate
class12
bookproblem
p273
objective
q87
modelpaper
mar-2008
oct-2009
asked
May 13, 2013
by
poojasapani_1
1
answer
The line $4x+2y=c$ is a tangent to the parabola $y^{2}=16x$ then $c$ is
tnstate
class12
bookproblem
p273
objective
q86
modelpaper
jun-2009
mar-2010
asked
May 13, 2013
by
poojasapani_1
1
answer
$16x^{2}-3y^{2}-32x-12y-44=0 $ represents
tnstate
class12
bookproblem
p273
objective
q85
asked
May 13, 2013
by
poojasapani_1
1
answer
The axis of the parabola $y^{2}-2y+8x-23=0$ is
tnstate
class12
bookproblem
p273
objective
q84
modelpaper
oct-2008
asked
May 13, 2013
by
poojasapani_1
1
answer
If $\omega$ is a cube root of unity then the value of $(1-\omega)(1-\omega^{2})(1-\omega^{4})(1-\omega^{8})$ is
tnstate
class12
bookproblem
p273
objective
q83
modelpaper
mar-2009
asked
May 13, 2013
by
poojasapani_1
1
answer
If $\omega$ is the $n$th root of unity then
tnstate
class12
bookproblem
p273
objective
q82
asked
May 13, 2013
by
poojasapani_1
1
answer
If $\omega$ is a cube root of unity then the value of $(1-\omega+\omega^{2})^{4}+(1+\omega-\omega^{2})^{4}$ is
tnstate
class12
bookproblem
p273
objective
q81
modelpaper
mar-2006
jun-2006
asked
May 13, 2013
by
poojasapani_1
1
answer
If$ -i+3 $ is a root of $x^{2}-6x+k=0 $ then the value of $k$ is
tnstate
class12
bookproblem
p273
objective
q80
modelpaper
oct-2008
asked
May 13, 2013
by
poojasapani_1
1
answer
If $\large\frac{1-i}{1+i}$ is a root of the equation $ax^{2}+bx+1=0$ where $a ,b $ are real then $(a , b) $is
tnstate
class12
bookproblem
p273
objective
q79
modelpaper
oct-2007
asked
May 13, 2013
by
poojasapani_1
1
answer
The equation having $4-3j$ and $4+3j $ as roots is
tnstate
class12
bookproblem
p273
objective
q78
modelpaper
mar-2007
asked
May 13, 2013
by
poojasapani_1
1
answer
The quadratic equation whose roots are $\pm\;i\sqrt{7} $is
tnstate
class12
bookproblem
p273
objective
q77
modelpaper
oct-2007
asked
May 13, 2013
by
poojasapani_1
1
answer
If $-i+2 $ is one root of the equation $ax^{2}-bx+c=0$, then the other root is
tnstate
class12
bookproblem
p273
objective
q76
modelpaper
mar-2008
oct-2009
mar-2010
asked
May 13, 2013
by
poojasapani_1
1
answer
A lot of 100 watches is known to have 10 defective watches.If 8 watches are selected(one by one with replacement) at random,what is the probability that there will be at least one defective watch?
cbse
class12
ch13
sec3
q23
p273
short-answer
exercise9-4
math
sec-a
asked
Jan 9, 2013
by
sreemathi.v
1
answer
The probability of a man hitting a target is 0.25.He shoots 7 times.What is the probability of his hitting at least twice?
cbse
class12
ch13
q22
p273
short-answer
exemplar
sec-a
easy
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
Ten coins are tossed.What is the probability of getting at least 8 heads?
cbse
class12
ch13
q21
p273
short-answer
exemplar
sec-a
easy
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
A die is thrown 5 times.Find the probability that an odd number will come up exactly three times.
cbse
class12
ch13
q20
p273
short-answer
exemplar
sec-a
easy
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
Four cards are successively drawn with out replacement from a deck of 52 playing cards.What is the probability that all the four cards are kings?
cbse
class12
ch13
q19
p273
short-answer
exemplar
sec-a
easy
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
A box has 5 blue and red balls.One ball is drawn at random and not replaced.Its colour is also not noted .The another ball is drawn at random.what is the probability of second ball being blue?
cbse
class12
ch13
q18
p273
short-answer
exemplar
sec-a
easy
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
Bag I contains 3 black and 2 white balls,Bag II contains 2 black and 4 white balls.A bag and a ball is selected at random .Determine the probability of selecting a black ball.
cbse
class12
ch13
q17
p273
short-answer
exemplar
sec-a
easy
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
Suppose 10,000 tickets are sold in a lottery each for Re1.First prize is of Rs 3000 and the second prize is of Rs 2000.There are three third prizes of Rs 500 each.If you buy one ticket,what is your expectation.
cbse
class12
ch13
q15
p273
short-answer
exemplar
sec-a
easy
math
asked
Jan 8, 2013
by
sreemathi.v
1
answer
Three dice are thrown at the same time.Find the probability of getting three two's,if it is known that the sum of the numbers on the dice was six.
cbse
class12
ch13
q14
p273
short-answer
exemplar
sec-a
easy
math
asked
Jan 8, 2013
by
sreemathi.v
1
answer
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