antoni7
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Questions Asked

antoni7:
Please HELP !!!: Complex Number
…
 updated 6 months ago
 49 replies
 3 Medals
Mathematics

antoni7:
HELP : Part (ii) (b)
(i) Express (√6) cos θ + (√10) sin θ in the form R cos(θ − α ), where R > 0 and 0◦< α < 90◦. Give
…
 updated 6 months ago
 24 replies
 1 Medal
Mathematics

antoni7:
Check if I have drawn the diagram correctly : Shade on an Argand diagram the region whose points represent the complex numbers z which
sati…
 updated 6 months ago
 39 replies
 1 Medal
Mathematics

antoni7:
On a sketch of an Argand diagram with origin O, show the points A and B representing the
complex numbers z and iz* respectively. Prove that…
 updated 6 months ago
 2 replies
 No Medals Yet
Mathematics

antoni7:
Help : Integration with substitution!
 updated 6 months ago
 14 replies
 2 Medals
Mathematics

antoni7:
Binomial Expansion : (1+x)^n type...
 updated 6 months ago
 59 replies
 3 Medals
Mathematics

antoni7:
Help : Complex Numbers !
…
 updated 6 months ago
 23 replies
 1 Medal
Mathematics

antoni7:
Help : Integration!
 updated 6 months ago
 16 replies
 2 Medals
Mathematics

antoni7:
Try this => Prove the identity cos 3θ ≡ 4 cos^3 θ − 3 cos θ.
 updated 6 months ago
 4 replies
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Mathematics

antoni7:
2 tan^2 x+ 3 tanx – 1 = 0 , for 0 < x < 180
 updated 6 months ago
 32 replies
 2 Medals
Mathematics

antoni7:
Find the coefficient of x^6 in the expansion of ( 2x^3  1/(x^2) )^7.
 updated 7 months ago
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Mathematics

antoni7:
Relative to an origin O, the position vectors of points A and B are 3i + 4j − k and 5i − 2j − 3k
respectively.
The point C is the midpoin…
 updated 7 months ago
 7 replies
 1 Medal
Mathematics

antoni7:
differentiate (2x +1) / (x)
 updated 9 months ago
 5 replies
 2 Medals
Mathematics

antoni7:
State one similarity between electric potential and gravitational potential at a point.
 updated 11 months ago
 2 replies
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Mathematics

antoni7:
The acute angle x radians is such that tan x = k, where k is a positive constant. Express, in terms of k,
sin x
 updated 11 months ago
 5 replies
 1 Medal
Mathematics

antoni7:
please help ...!!!
The probability density function of the discrete random variable X is given below.
P ( X = x ) = 1/8 , x = 3 , 2 , …
 updated one year ago
 1 reply
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Mathematics

antoni7:
Find the value of the coefficient of x^2 in the expansion ( x/2 +2/x)^6.
 updated one year ago
 1 reply
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Mathematics

antoni7:
40 men and 10 women have had an oral test and a driving test for a driving license. The number of them who have passed the tests are tabulat…
 updated one year ago
 22 replies
 1 Medal
Mathematics

antoni7:
Help : Conditional Probability
A fair cubical die is rolled.
Event A : obtaining a score of less than 4
…
 updated one year ago
 1 reply
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Mathematics

antoni7:
Please Help..!
60% if the production of a department of a factory are polo shirts and the rest tshirts. 30% of the polo shirts are of smal…
 updated one year ago
 18 replies
 2 Medals
Mathematics

antoni7:
!!!! Explain using Physics Concept, when I throw a boomerang why does it comeback and how ? !!!
 updated one year ago
 1 reply
 1 Medal
Mathematics

antoni7:
why gravitational effects are not considered in αparticle scattering experiment ?
 updated one year ago
 7 replies
 1 Medal
Mathematics

antoni7:
the probability that it rains on any day in a particular month is p. The probability that it rains on only one day on two consecutive days i…
 updated one year ago
 11 replies
 No Medals Yet
Mathematics

antoni7:
A , B and C are three independent events such that p(A) = 0.2 p(B) = 0.4 and p(C)= 0.5 Find P( A and B and C )
P ( A only or B only or C on…
 updated one year ago
 No Medals Yet
Mathematics

antoni7:
Please HELP !!!
Probability Question :
Out of every four seeds put into soil, three germinate into plants. Each plant is equally likely to…
 updated one year ago
 154 replies
 1 Medal
Mathematics

antoni7:
In a bag there are 2 black and 4 white identical rings. Two rings are drawn from the bag at random. Find the probability that only one of th…
 updated one year ago
 6 replies
 2 Medals
Mathematics