Proving Identities - Page 2
Questions
- How do you verify the identity #cos(pi/2-x)/sin(pi/2-x)=tanx#?
- How do you prove #sintheta=+-tantheta/(sqrt(1+tan^2theta))#?
- How do I prove this identity? 2-tanx/2cscx-secx=Sinx
- How do you verify #tanh(x + y) = (tanh x + tanh y)/(1 + tanh x + tanh y)#?
- If #sinA*sin(B-c)=sinC*sin(A-B)# then show that # a^2,b^2,c^2# are in AP.?
- How would you prove or disprove #cotx - cosx/cotx = cos^2x/(1 + sinx)#?
- How do you verify #cosBcotB=cscB-sinB#?
- Cos 3 theta/sin 3 theta?
- How do you prove #secx+sin^2x+cos^2x=secx#?
- How do I verify this equation is an identity? sin(180°-α)=1-cos^2α/sinα
- What identity is this? If it would be pythagorean identity the identity would change from csc squared to cot squared plus one
- How do you prove #tantheta/cottheta=tan^2theta#?
- How to prove: cos^2(2x) - sin^2(x) = cos(x).cos(3x)?
- How do you simplify #(sin^2x-1)/(1+sin^2x)#?
- How do you prove #(tan x + 1) / (tan x -1) = (sec x + csc x) / (sec x - csc x)#?
- How do you prove #cot(x)cos(x)+sin(x)=csc(x)#?
- How do you verify #secxcscx=tanx+cotx#?
- How do you prove #csc^2xtan^2x-1=tan^2x#?
- How do you use the graphing calculator to determine whether the equation #costheta(costheta-sectheta)=-sin^2theta# could be an identity?
- How do you prove the identity #cot(x)+sec(x)=(cos(x)+tan(x))/sin(x)#?