Answers edited by Sean

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• How to find solutions to an unknown variable using the discriminant?
  
• A rectangle is 4 times longer than it’s width. The perimeter of the rectangle is 30 cm. Find the dimensions?
  
• Question #57107
  
• How do you solve tan x - sin 3x = 1?
  
• Please help me with this question ?
  
• Question #9c615
  
• Help please?
  
• Question #3d967
  
• Find area under the curve? Pl refer to the question in the img attached
  
• Solve equation #4(sin^2(2x)) +7(sin^2x)-2=0# For #0<x<360#?
  
• Question #b5fef
  
• Question #862c2
  
• Could someone pls solve this bearings question?
  
• Can you help me with steps please?
  
• How do you express #sin 3theta# in terms of trigonometric functions of #theta# ?
  
• What's the value of the two#?# ? I don't understand what's the question is asking actually and have no idea on what method to use to calculate. :(
  
• Question #451d9
  
• Question #93d8f
  
• Question #8c1a5
  
• Question #d1247
  
• Question #b56a0
  
• Question #ba28d
  
• Question #2d3ed
  
• Please provide a detailed explanation to this problem?
  
• How do I solve this system for a and b? (I was given the hint to use sin x and cos x as constants.) a cos x + b sin x = 0 -a sin x +b cos x = tan x
  
• How to construct simulataneous equation through extended responses?
  
• Question #f0505
  
• Question #656ba
  
• How to do this integral question?
  
• Find the stationary points question 11?
  
• What is a ratio?
  
• Question #8b99b
  
• The volume of ice-cream in the cone is half the volume of the cone. The cone has a 3cm radius and 6cm height. What is the depth of the ice cream, correct to two decimal places?
  
• Find the coordinates of the points where the straight line #y=2x-3# intersects the curve #x^2+y^2+xy+x=30#. Help please?
  
• Question #5711b
  
• Question #0516f
  
• How do you find the exact Trigonometric value in simplest form given secA = -5/4 and 180º < A < 270º, Find sin 2A ?
  
• How do you prove that this trangle is isosceles?
  
• Question #5acf9
  
• A point moves in a manner that the sum of the squares of its distance from thr origin and the point (2,-3) is always 19.show that the locus of moving point is a circle.find the equation to the circle?
  
• Derivative of #sqrt(x-1)(x+1)#?
  
• Question #5984e
  
• How do you find the horizontal asymptote of f(x)=e^1/x?
  
• What will happen to the surface area of a rectangular prism if all three of its dimensions are doubled? Tripled? Explain your answer?
  
• How to Solve Tanx Cosx Sinx-1=0 algebraically, over 0 ≤ x <360 Deg.?
  
• Factorise the following using completing square method?
  
• Question #1506a
  
• If the tangent line to y = f(x) at (6, 4) passes through the point (0, 3), find f(6) and f '(6). what's f(6) and f'(6)?
  
• Image set p=x^2+1 (-2<=x<=2)?
  
• Question #9c18f
  
• Please use the picture and answer part a,b, and c. I need help in how to find the domain of each of the function and interval(s) where they are continuous?
  
• Question #30b08
  
• It's a geometry question stating to find the area of quadrilateral ABCD?
  
• How can I solve this differential equation? : #(2x^3-y)dx+xdy=0#
  
• A sector of area 17 square feet is formed by a central angle of 154.6986 ∘ 154.6986∘. Find the radius of the circle?
  
• If #y= x^3 + 6x^2 + 7x -2cosx#, what are the points of inflection of the graph f (x)?
  
• Am I allowed to open these brackets of t the angle?
  
• Question #cd174
  
• Question #811ac
  
• How do I even approach this problem? I don't know where to start.
  
• Question #ed9da
  
• Question #78615
  
• Question #8f220
  
• I need help with solving this equation?
  
• How do you find the limits of the function below?
  
• Question #69623
  
• What is the equation of the line that is normal to #f(x)=x^2cosx+sinx # at # x=-pi/3#?
  
• Question #42c59
  
• Question #efa3a
  
• Related Rates?
  
• What is the volume of water in a trough when the depth of the water is d?
  
• Question #41c4f
  
• Question #829b0
  
• Question #d6918
  
• What is the vertex of # y=4/3x^2 - 2x - 3 #?
  
• Can someone help me solve this? f(x)=arccos(2x+4)−sqrt[3-3x^2] find f′(x)?
  
• How do you differentiate #y= (sin^2 x tan^4 x) / (x^2 + 1)^2#?
  
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