Questions asked by Carmen

• Back to user's profile
• How do I simplify this expression? sin^2x-cos^2x/sinx-cosx
  
• How can I prove the following equation is an identity? 1+sec^2(x)sin^2(x)=sec^2(x)
  
• How do I prove this equation is an identity? sin^3+sin(x)cos^2(x)/cos(x)=tan(x)
  
• How do I verify this equation is an identity? sin(180°-α)=1-cos^2α/sinα
  
• How do I verify this equation is an identity? cos(x+y)/cosx cosy=1-tanx tany
  
• How do I determine the amplitude, period, and phase shift for this function? #y=-2cos(pi/2x+pi)#
  
• How do I find equation for this curve in its final position? The graph of y=sin(x) is shifted a distance of π/4 to the right, reflected in the x-axis, then translate one unit upward
  
• How do I simplify? sin²x-sinx2/sin²x-4
  
• How do I proof this equation is an identity? 1-sec(x)cos³(x)=sin²(x)
  
• How do I simplify this expression? Sin²(-x)-Sin(-x)/1-sin(-x)
  
• How do I prove this equation is an identity? Secx-Cosx/Secx=Sin²x
  
• How can verify this equation is an identity? Sin(α+ß)Sin(α-ß)=Sin²α-Sin²ß
  
• How do I simplify this expression? Sin²(-x)-Sin(-x)/1-Sin(-x)
  
• How do I this equation is not an identity? Write explanation in paragraph form (Siny+Cosy)²=Sin²y+Cos²y
  
• How do I prove this equation is an identity? Sin(x)/csc(x)+Cos(x)/Sec(x)=1
  
• How I write this expression in terms of sines and/or cosines, and then simplify? 1+cosαtanαcscα/cscα
  
• How do I show this equation is not an identity in paragraph form? sin α=square root 1-cos²α
  
• How do I prove this is an identity? 1/csc(theta)/csc(theta)-cot(theta)=1+cos(theta)/sin(theta)
  
• Can you help me determine the period and sketch at least one cycle of the graph for this function? y=tan πx
  
• How can I simplify this expression? Sin(ß)Cos(-ß)Csc(ß)
  
• How can I prove this equation is an identity? #sin^4w=1-cot^2w + cos^2w (cot^2w)/(csc^2w)#
  
• Prove this equation is an identity? secx/tanx- tanx/secx=tanx/cscx
  
• Write this expression in terms of sine and cosines and simplify? (Cosßtanß+1) (Sinß-1)
  
• Is this equation an identity? Cos²y-Sin²y=Sin(2y)
  
• Can we prove this is an identity? Sin(x) Cot(x)=Cos(x)
  
• Prove this is an identity? 1-sinx=1-sin²(-x)/1-sin(-x)
  
• Use identity to simplify the expression? 2sin(π/9-π/2)cos(π/2-π/9)
  
• Use identity to simplify equation? #2sin13°cos13°#
  
• Verify this is an identity? cos2x/sin²x=csc² x-2
  
• Verify this is an identity? cos2x+cos2y/sinx+cosy=2cosy-2sinx
  
• Verify this is an identity? cos 3t=cos^3 t-3sin² t cos t
  
• Verify this is an identity? #2 sin^2 (u/2)=sin^2u/(1+cosu)#
  
• Find all real numbers to satisfy equation? sin(πx)=1/2
  
• Find all real numbers to satisfy equation? Cos(2πx)=0
  
• Find all real numbers to satisfy equation? 2sin(x/2)-1=0
  
• Find all value of α in [0°, 360°) that will satisfy this equation? 2sinα=-√3
  
• Find all value of α in [0°, 360°) that will satisfy this equation? √2cos2α-1=0
  
• Find all values of α in[0°,360°) to satisfy this equation? cot(α/2)=√3
  
• Find all values of α in degrees to satisfy this equation, round to approximate to the nearest tenth of a degree? csc(α/2)=-2.3
  
• Find all real numbers in interval [0,2π)? sin x cos(π/4)+cos x sin (π/4)=1/2
  
• Find all values of Θ in the interval [0°, 360°)? tan²Θ - 2 tan Θ -1 = 0
  
• Find all values of #x# in #[0^circ, 360^circ)# to satisfy this equation? #sin x + sqrt3= 3 sqrt3 cos x#
  
• Find all real numbers in the interval #[0, 2pi)# round to the nearest tenth? #3 sin^2x=sin x#
  
• Write complex number in the form of a+bi? 1/2(cos 3.7 + i sin 3.7)