Answers created by Manikandan S.

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• 120degree is alarge angle so the triangle qith an angle 120degree ,i mean how we can find perpendicular for that triangle?
  
• Verify this is an identity? `2 sin^2 (u/2)=sin^2u/(1+cosu)`
  
• Write sec theta - tan theta sin theta in terms of sin theta and cos theta; then simplify if possible. (Leave your answer in terms of sin theta and/or cos theta)? See details for the problem
  
• Represent all the trigonometric ratios as positive and negative in the 4 quadrants?
  
• What is equivalent to 2sin(2x) / (1+cos(2x))(1-tan^2x) using double angle formulas?
  
• How do you solve 2sin^3X-sin^2X-2SinX+1=0? I don't get how you get the 270.
  
• Which one is the correct one??
  
• Question #167f2
  
• How do you solve `8n ^ { 2} + 56n = - 48`?
  
• Question #88d71
  
• Question #1d344
  
• Why is `1-cos^3x=(1-cosx)(1-2cosx+cos^2x)` a conditional equation?
  
• How do you solve the following linear system: `x-2y+z=-14, y-2z=7, 2x+3y-z=-1`?
  
• Question #07672
  
• How can i find x?
  
• Question #ac9a0
  
• How do you evaluate `(\frac{1}{x^{2}+1}-\frac{2-x}{x+1})/(\frac{1}{x}+x-2)`?
  
• How do you graph `Y= 3(x - 2)^2 + 5`?
  
• Question #73167
  
• How do you evaluate `\int \frac { 1} { \csc x - 1} d x`?
  
• How do you solve `x^2 – 12x + 32 <12`?
  
• Question #375bd
  
• Question #9133b
  
• How do you evaluate `(8x - 4x ^ { 2} + 8) + ( 5+ 5x ^ { 2} + 5x ) - ( 8+ 7x - 6x ^ { 2} )`?
  
• How do you solve `x^ { 2} - 16x = 24`?
  
• How to calculate derivative? `(7x-1)^3(2x+1)^2`
  
• How do you use the chain rule to differentiate `y=root5(x^2-3)/(-x-5)`?
  
• Question #49555
  
• Question #09f05
  
• How do you differentiate `f(x)=xe^xcscx`?
  
• Question #de1a0
  
• Question #efa64
  
• How do you solve the system of equations by graphing and then classify the system as consistent or inconsistent `y= 9/8x+5` and `y= -4`?
  
• How solve complicated logarithm?
  
• How do you simplify `6( 3p + 7) \geq 7( 4p + 4) - 8p`?
  
• Question #8d484
  
• What is the correct way to solve this? Explain in steps. Thank you.
  
• Question #a2a3e
  
• Given the difference between the roots of the quadratic equation `x^2`+ `6x` + h - 3 = 0 is 4, where h is a constant. Find the value of h?
  
• How do you graph `y = 1 + |x-1|`?
  
• Which of the following should occur when placing a certain amount of tetraphosphorus solid in the same container as dihydrogen gas, if `"8.0 mols"` of `"H"_2(g)` are present?
  
• How do you solve `x^4+3x^3-28x^2+13x+42 = 0` ?
  
• Why is this wrong when I solve for finding the inverse of the matrix by using gauss jordan elimination?
  
• Question #16f9b
  
• Question #f23eb
  
• Question #cecb0
  
• How do you multiply `(5x+9)(2x-3)`?
  
• Question #caf8c
  
• How do you simplify `\frac { 2a ^ { 2} ( a ^ { - 3} ) ^ { 6} } { ( a ^ { - 1} ) ^ { - 2} }`?
  
• How do you solve `(2x+3)(x+4)=1` for x using the square root property?
  
• Question #d62d3
  
• Question #0f31b
  
• What kind of changes (chemical or physical) do chefs use make to food?
  
• Question #01551
  
• Question #50ade
  
• I live in France where you can buy wine in bulk. I normally buy wine by the litre. I went to a place which sold it by the kilogram. I completely filled my 5 litre container with white wine and it weighed 4.85kg. Why is wine less dense than water?
  
• How do you solve `x+2/3=7/8`?
  
• Question #842f0
  
• Question #2262f
  
• Why is benzene separated from water using a separatory funnel?
  
• How do you evaluate `2\sqrt { 15} ( 3+ \sqrt { 5} )?`
  
• Question #87509
  
• What is the derivative of `y=(lnx)^(cosx)`?
  
• Question #01a4e
  
• How do you evaluate `int arcsin(x) / x^2 dx` from 1/2 to 1?
  
• How do you solve `2cot^4x-cot^2x-15=0`?
  
• How do you find the remaining side of a `30^circ-60^circ-90^circ` triangle if the side opposite `60^circ` is 6?
  
• What is the derivative of `arctan sqrt(x^2 -1)`?
  
• Question #c9225
  
• Question #c0f6a
  
• Water vapor is water as a: solid, liquid, or gas?
  
• 67 is 13% of what?
  
• Question #96fc8
  
• How do you use the product rule to differentiate `sqrt(1+3x^2 )lnx^2`?
  
• The standard form of the equation of a parabola is `x=y^2-4y+20`. What is the vertex form of the equation?
  
• How do you simplify `2 times (3-5) + 6`?
  
• Given `f(x) = x^4+ax^3+bx^2+cx+d` with `f(1) = 1`, `f(2) = 5`, `f(3) = 19` and `f(6) = 665`, what is the value of `f(4)+f(5)` ?
  
• What is the equation of the line through the point `(-2,8)` with slope `1/2`?
  
• How do you solve `logx + log(x + 15) = 2`?
  
• How do you find the inverse of `y=log_7 49^x`?
  
• How do you graph and solve `| 5 x - 1 | <16`?
  
• Question #ecbec
  
• Question #45702
  
• How do you factor `-x^2y^2 + x^4 + 4y^2 - 4x^2`?
  
• Suppose a log's mass is 5 kg. After burning, the mass of the ash is 1 kg. What may have happened to the other 4 kg?
  
• What are the data analysis tools used for?
  
• What occurs when the vapor pressure of a liquid is equal to the atmospheric pressure?
  
• Question #864f0
  
• How do you differentiate `f(x)=e^tan(1/x^2)` using the chain rule?
  
• How do you write the partial fraction decomposition of the rational expression `5 / (x^2 + x - 6)`?
  
• How do you solve rational equations `2/(3x+1) = 1/x - (6x)/(3x+1)`?
  
• How do solve the following linear system?: `3x + 2y = 12, 3x - y = -6`?
  
• Question #cf0cb
  
• How do you find the derivative of `y = (3x + 1)^2`?
  
• How do you divide `(t^5 - 3t^2 - 20)` by `t-2`?
  
• How do you graph `f(x)=1/2x^2 +2x - 8`?
  
• How do we know which ions each element forms? And how do assign charges in complex ions?
  
• Can metals be in a gaseous state?
  
• Question #6b829
  
• How do you find the derivative of Inverse trig function `y= sec^-1 (sqrt(1-x))`?
  
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