Questions asked by Loweena Gonasegaran

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• Given that nth term of an arithmetic progression is Tn=7-2n, find a)second term b)common difference ?? Help pls!!
  
• What is the ionic equation of #KOH + HCl -> KCl + H2O# ?
  
• Given that #int_0^3f(x)dx=6# and #int_0^2f(x)dx=5#. Show that #int_2^3f(x)dx#. How to do this?
  
• Given #int_0^3f(x)dx=6# and #int_0^2f(x)dx=5#. Find the value k when #int_3^2(f(x)-k)dx=5k#. How to do this question? Help needed
  
• Coordinate of P is (1,1) and the coordinate of Q is (2,0). What is the area of the area bounded by the curve #y=2x-x^2#, the straight line #x+y=2# and the y-axis?
  
• What is the name of this compound??
  
• In the below diagram, BC is parallel to DE. Given AC:CE=2:3, express #vecDE# in term of #vecBC#?
  
• Based on the table given below, why there is a difference in these observations??
  
• How can I find the people who's using #Socratic# from same country with me?
  
• A is an acute angle and #cos A=5/13#. Without using multiplication or calculator,find the value of each of the following trigonometry function a) #cos (180°-A)# b) #sin (180°-A)# c) #tan (180°+A)# ?
  
• Show that #cot (-390°)-4 cos 480# = #2-sqrt3#.?
  
• How do you solve sec #x# = cosec #3/4pi# for the range value of #0 <= x <= 2pi# ?
  
• Without using calculator or table of multiplication, show that #cos 255° = (sqrt2-sqrt6)/4#.?
  
• Without using calculator or table of multiplication, show that #tan 195° = (sqrt3-1)/(sqrt3+1)#.?
  
• Prove that #(sin(A+B))/(cos(A-B)) = (tan A-tan B)/(1+tan A tan B)#?
  
• Given that #tan (1/2 theta) = -3#. Show that #tan theta = 3/4#.?
  
• The price of a new car is #RM80000#. It is given that the price of the car depreciates at a constant rate if 5% yearly. Calculate the minimum number of years required for the price of the car to drop to less than #RM45000#.?
  
• Given that #int_0^k(x+2)dx = 6# , where #k>0#, find the value of #k#.?
  
• Given #3#, #m#, #n#, #192# are the first four consecutive terms of a geometric progression. Find the three consecutive terms which added up to 16128 ?
  
• Given a straight line #y=-1\2x+3# intersects the y-axis at point A and the x-axis at point B. A point P#(x.y)# divides the straight line in the ratio AB:BC = 1:2 .Find the coordinates of point P.?
  
• Given that #p(x)=(3/((2x^2-5)))#, find #p''(x)#?
  
• Help pls...Question 22)b) ??
  
• How would you prepare lead(II) nitrate from lead(II) carbonate ?
  
• Given that #sin theta cos theta =7/50# and #0^0 < theta < 90^0#. Find the value of #cos theta#.?
  
• Diagram 2 shows the function #p# maps #x# to #y# and the function #q# maps #y# to #z#. Given #p:x->x-2# and #q:y->-8+3y#. Find the value of #k#.?
  
• Given the vectors #vec AB = 3ul a + k ul b# and #vec BC = -5 ul a - ul b#. Find the value of #k# if the points #A#,#B# and #C# are collinear.?
  
• Normal Distribution...contribution pls?