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ceasar

Questions (20)

Find the area bounded by the curves y= x^2 + 4 and y=x + 2
1. 0 answers
2. 459 views
Show weher the equation is exact and find its primitive(3e^3x y - 2x)dx + e^3x dy=0
1. 1 answer
2. 546 views
Use binomial theorem to to expand squareroot of 4+x in ascending powers of x to four terms.Give the limits for which the
1. 1 answer
2. 674 views
Given that A =(X-2 1 )2 X-3 IS a singular matrix,find the value of x.
1. 0 answers
2. 449 views
Given A = (X-2 1 )2 X-3 is a singular matrix,find the value of x
1. 1 answer
2. 484 views
Evaluate cuberoot of z given that z =8(cos264degrees + isin264degrees)
1. 0 answers
2. 435 views
given that (2 +3i)(3-4i)=x+yi,find x and y
1. 1 answer
2. 377 views
A bomb is dropped from a height of 40m.simultaneously and vertically below it,a second bomb is fired vertically with a velocity
1. 1 answer
2. 511 views
A stone is thrown vertically upwards with a speed of 24m/s,two seconds later a second stone is dropped from the same point.Find
1. 2 answers
2. 828 views
How much ice at zero degrees celsius is needed to cool 250g of water at 25 degrees celsius to zero degrees celsius.
1. 1 answer
2. 1,176 views
Given that the equation of the hyperbola is 9x(squared)-4y(squared)=36.(i)Find the centre and vertices (ii)Find the foci and
1. 1 answer
2. 555 views
A 1200kg car has its tyres inlated to a gauge pressure of 180kpa.How large an area for each tyre is in contact with the ground
1. 1 answer
2. 518 views
Three points A,B and C have coordinates (1,0),(4,4) and (13,5) respectively.1.By how many units does the length of AC exceed the
1. 1 answer
2. 652 views
calculate the refractive index for a ray travelling from air to water given that the angle of incidence is 30degrees and the
1. 1 answer
2. 929 views
evaluate without using a calculator, leaving your answer as surds(a)sin105 degrees (b)tan15 degrees (c)cos 75 degrees
1. 2 answers
2. 1,883 views
Given that A + B = 120 degrees and cosA + cos B = 1 divided by squareroot of 2,show that cos A-B divided by 2 = 1 divided by
1. 1 answer
2. 603 views
Given that Sin(A+B)=2Cos(A-B) and tan A = 1/3 ,Find the exact value of tan B.
1. 0 answers
2. 515 views
a) Given that A+B =120¢ª and cos A + cos B = 1/¡î2 show that cos(A+B)/2 =1/¡î2
1. 0 answers
2. 415 views
calculate the mass of phosphorus required to make 200g of phosphine ,PH3 by the reaction:P4(S) +3NaOH(aq) +3H2O(I)
1. 1 answer
2. 3,722 views
A student of mass 80kg stands on a spring scale in an elevator.During the first 3seconds,starting from rest,the scale reads
1. 1 answer
2. 798 views

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