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Questions Asked

Mimi_x3:
Karnaugh Maps
 updated 11 months ago
 81 replies
 2 Medals
Mathematics

Mimi_x3:
Just for fun. :)
\[\int_{0}^{\pi/2}xcot(x)dx\]
 updated one year ago
 19 replies
 4 Medals
Mathematics

Mimi_x3:
Prove:
\[\binom{n1}{k1}
+\binom{n2}{k1}
…
 updated one year ago
 12 replies
 3 Medals
Mathematics

Mimi_x3:
A cannon shell is projected at \(u\) m/s at elevation angle at \(\theta\).
The cannon hit the target at \(X,Y)\) when fired at two differen…
 updated one year ago
 37 replies
 4 Medals
Mathematics

Mimi_x3:
Projectile Motion:
Two particles are projected simultaneously from \(A\) with the same velocity \(V\) at the angles of elevation \(\alpha…
 updated one year ago
 8 replies
 6 Medals
Mathematics

Mimi_x3:
Probability:
A man is restoring ten old cars, six of them manufactured in \(1955\) and four of them manufactured in \(1962\). When he tri…
 updated one year ago
 18 replies
 3 Medals
Mathematics

Mimi_x3:
Arab Israeli Conflict
 updated one year ago
 5 replies
 1 Medal
Mathematics

Mimi_x3:
\[\int\frac{1}{ln(x+1)}
dx\]
 updated one year ago
 23 replies
 1 Medal
Mathematics

Mimi_x3:
Geometry Question.
 updated one year ago
 46 replies
 5 Medals
Mathematics

Mimi_x3:
The volume of a sphere radius r increases at 12pi cm^3/minute by inflation. What is the rate of growth of its surface area?
 updated 2 years ago
 20 replies
 10 Medals
Mathematics

Mimi_x3:
Only for Kaffeine, easy one first.
…
 updated 2 years ago
 56 replies
 7 Medals
Mathematics

Mimi_x3:
If the chord of contact of the tangents to a parabola x^2=4ay, from an external point T(x1,y1) meets the directrix at R, prove that RT subt…
 updated 2 years ago
 171 replies
 5 Medals
Mathematics

Mimi_x3:
At a point P on the parabola x^2=4ay, a normal PK is drawn. From the vertex O a perpendicular OM is drawn to meet the normal at M. Show tha…
 updated 2 years ago
 22 replies
 5 Medals
Mathematics

Mimi_x3:
P is the point (2ap,ap^2) on the parabola x^2=4ay. The tangent at P meets the axis of the parabola at T and PN is drawn perpendicular to th…
 updated 2 years ago
 39 replies
 5 Medals
Mathematics

Mimi_x3:
Two straight roads intersect at right angles. Two men, A and B, are 100 km from the intersection, one on each road. They drive towards the …
 updated 2 years ago
 54 replies
 9 Medals
Mathematics

Mimi_x3:
What are the effects of melting and boiling points of water by additions of different solutes as salt>
 updated 2 years ago
 6 replies
 3 Medals
Mathematics

Mimi_x3:
Find the number of mole required to make a solution of 0.1 mol HF in 200ml.
 updated 2 years ago
 2 replies
 2 Medals
Mathematics

Mimi_x3:
The cost of running a vehicle at an average speed v is km/h is 64 + v^2/100 dollars per hour. Consider a travel distance of 100km
a) Show t…
 updated 2 years ago
 15 replies
 2 Medals
Mathematics

Mimi_x3:
At room temperate and pressure, 1.0 L of helium gas has a mass of 0.16g. Under the same conditions, what is the mass of 1.0L of hydrogen ga…
 updated 2 years ago
 22 replies
 3 Medals
Mathematics

Mimi_x3:
A student wishes to dilute 50ml of a solution 0f 0.10 mol L^1 calcium chloride to obtain ion concentrate of 0.02 mol L^1.
What is the vol…
 updated 2 years ago
 4 replies
 2 Medals
Mathematics

Mimi_x3:
An electricity tower is h metres high. The elevation angles of the tower from Aaron and Kevin are respectively 45° and 30° . On the ground…
 updated 2 years ago
 25 replies
 2 Medals
Mathematics

Mimi_x3:
Cindy is some distance NW from a building Don is some distance due North of a building. If Don is twice as far as Cindy from the building a…
 updated 2 years ago
 24 replies
 3 Medals
Mathematics

Mimi_x3:
An electricity tower is h metres high. The elevation angles of the tower from Aaron and Kevin are respectively 45° and 30°. On the ground, …
 updated 2 years ago
 6 replies
 4 Medals
Mathematics

Mimi_x3:
The elevation angles of the tree top from Kevin and Lisa standing on the ground are respectively 40° and 30°. The bearings of Kevin and Lis…
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

Mimi_x3:
Cindy is some distance NW from a building Don is some distance due North the same building. If Don is twice as far as Cindy from the buildi…
 updated 2 years ago
 16 replies
 1 Medal
Mathematics

Mimi_x3:
Amy is 20m S30°W from a tree. Belinda is 50m 110° T from the same tree. Find the distance between them, to the nearest metre.
 updated 2 years ago
 53 replies
 3 Medals
Mathematics

Mimi_x3:
A cylindrical metal container with base radius of r metres and height h metres holds 54πm^3.
(a) Show that the surface area of the contain…
 updated 2 years ago
 10 replies
 2 Medals
Mathematics

Mimi_x3:
A poster consists of a photograph bordered by a 5cm margin. The area of the poster is to be 400cm^2.
(a) Show that the area of the photogra…
 updated 2 years ago
 30 replies
 5 Medals
Mathematics

Mimi_x3:
Two sections are cut out from a wire of length 25cm. The sections are then used to form two different circles. Find the lowest total area o…
 updated 2 years ago
 4 replies
 3 Medals
Mathematics

Mimi_x3:
The polynomial P(x) = x^3  2x^2 + kx + 24 has roots a , b and γ
(i) It is known that two of the roots are equal in magnitude but opposite …
 updated 2 years ago
 21 replies
 1 Medal
Mathematics
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