proof that (sinx+sin3x-2sin2x)/(sinx+sin3x+2sin2x)=-tan(x/2)

1 answer

see

http://www.jiskha.com/display.cgi?id=1459708965

Similar Questions

Prove that: (sinx-2sin2x+sin3x)/(sinx+2sin2x+sin3x)= -tan^2 x/2.

Top answer: I don't understand it.... Read more.
sin3x=(sinx)(3-asin^2x)Wow! is that arcsin^2(x) ??? are we solving for x? or is it proving the identity? proving the identity

Top answer: To prove the identity sin3x = (sinx)(3-4sin^2x), we can start by using the double-angle identity for Read more.
Prove the following functions:(sinx+sin2x)/(1+cosx+cos2x)=tan x (cos3x/sinx)+(sin3x/cosx)=2cot2x tan2x=(2/cotx-tanx) theses are

Top answer: You can't prove a function. You can prove an identity. Using s for sinx, c for cosx, t for tanx, to Read more.
prove that cos3x+sin3x/cos x-sin x=1+2sin2x

Top answer: Do not omit required parentheses: Prove: (cos3x+sin3x)/(cos x-sin x)=1+2sin2x Have you tried using Read more.
Prove By induction that sinx + sin3x + sin5x +.... Sin(2n-1) =sin^2(nx)/sin3x

Top answer: In the denominator it should be sinx Read more.
Prove the following:[1+sinx]/[1+cscx]=tanx/secx =[1+sinx]/[1+1/sinx] =[1+sinx]/[(sinx+1)/sinx] =[1+sinx]*[sinx/(sinx+1)]

Top answer: LS = (1 + sinx)/(1 + 1/sinx) = (1 + sinx)/( ( sinx + 1)/sinx ) = (1 + sinx) ( sinx/(1+sinx)) = sinx Read more.
how does this work?(Sin2x+cos2x+2sin²x)/(sinx+cosx) = (sinx+cosx

Top answer: To simplify the expression (Sin2x+cos2x+2sin²x)/(sinx+cosx), we can start by rewriting it using Read more.
sin3x−sinx=0

Top answer: To solve the equation sin(3x) - sin(x) = 0, we can use the trigonometric identity that states sin(A) Read more.
Solve for x in the equation 2sin²x-1=cos²x+sinx

Top answer: To solve for x in the equation 2sin²x-1=cos²x+sinx, we first need to use the trigonometric Read more.
Verify that 7pi/6 is a solution to2sin2x–sinx=1.

Top answer: To verify if 7π/6 is a solution to the equation 2sin2x – sinx = 1, we need to substitute this Read more.