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?