Questions asked by ssd D.

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• Tan(x+pi/4)=1+2sinx cosx/1-2sin^2 x prove?
  
• Sketch the graph of y=sinx -square root 3 cos x for 0 less or equal to x and less and equal to 2pi thanks ?
  
• #(1+sinx -cosx) /(1+cosx +sinx )=tan(x/2) # prove the identities?help
  
• How to prove #(1+sinx-cosx)/(1+cosx+sinx)=tan(x/2)#?
  
• How to prove #(1+sintheta-costheta)/(1+costheta +sintheta)=tan(theta/2)#?
  
• A wooden box of mass 5.0kg is released to fall through a height of 20m to hit the ground.the work done against resistance is 300J . Find the speed of the box before hitting the ground?
  
• Horizontal force of 50N accelerates a block of mass 3.0 kg up an incline with an A=2.0ms^-2. The angle with horizontal is 30^o. Find a) force of friction between the box and the incline b) the coefficient of kinetic friction between box and the incline?
  
• Horizontal force of 50N accelerates a block of mass 3.0kg up an incline with an A=2.0ms.The anglewith horizontal is 30 degree.a)force of friction between the box and the incline b)the coefficient of kinetic friction betweenbox and the inclinehelpexplain?
  
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• Help work ?
  
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• How to calculate #6(sqrt5)^5 (2) =300(sqrt 5)?#
  
• HELP?please
  
• Help please anyone?!
  
• Help prove this?!
  
• Who can explain a please?
  
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• Help solve pls?!
  
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• Help thanks?!
  
• Help solve pls thanks?!
  
• Please help!?
  
• #w^4=-16i# how to write in de moivre theorem form?
  
• How to change it ? Can show the steps or explain it thanks
  
• How to solve ?please help!
  
• Please help to solve this thanks very much!?
  
• Solve this please ?! Thanks!
  
• How to differentiate # ln 5x^4# help?
  
• Find dy/dx of #y=e^x sin x # Help please and show the working? Thanks
  
• Find dy/dx of #y=e^(x sin x) # Help please and show the working? Thanks
  
• How to find the horizontal asymptote?
  
• How to find f(2) ? Help pls thanks!
  
• How to solve with explanations ?please thanks !
  
• Please help?! Thanks
  
• Help with solutions! Help please? Thanks
  
• Help please thanks?!
  
• I can’t solve this help please?!
  
• Show that y=h-2x I cant link the cone and cylinder please help?
  
• How to solve? What is different when switch is closed?Help!
  
• How to do the question 2?!
  
• Help please?!
  
• Help please!!!?
  
• Why the answer for (a) (i) is -Q and (ii) is +Q I am so confuse can anyone explain?thanks
  
• How to solve? Help please!
  
• Help please?!
  
• What is the time constant?
  
• The answer is given below someone show the calculation pleases?! I am stuck at this question
  
• What is the reading of the voltmeter when switch is off and on?
  
• Why the method of doing these 2 question are not the same ? Please help!!
  
• Can anyone explain the working please?!!
  
• Help please?!!!thanks
  
• I’m stuck on this help please ?!
  
• 4 men,2 women and a child are to be seated around a round table with 7 seats. Find the number of ways they may be arranged if !? a) the child is to be seated between two women b) the child is to be seated between two men
  
• The probability that rozaimah goes shopping is 0.8 on a sunny day and 0.4 on a rainy day. H forcefasted that it will rain tomorrow is 0.3. What is the probability that rozaimah will go shopping tomorrow?