Proving Identities - Page 6
Questions
- How do you prove that #costheta/(1-sintheta) + costheta/(1+sintheta) = 2 /costheta#?
- Problem (1) For what value of #x#, #sinx+cosx=2# Problem (2) For what value of #x#, #sinxcosx=1#?
- How do I prove that #1/(sec A+1)+1/(sec A-1)#=#2 csc A cot A# ?
- How do you simplify #\frac { \tan \theta \cos \theta } { \sin \theta }#?
- How do I prove that #(tanx-sinx)/(tanxsinx)=(1-cosx)/sinx#?
- Which of these is an identity?
- If sin(x) = 0.4 , what is sin((3π/2)+x)=? , Show exact values. How would I get along solving this without a calculator.
- Help with a trig proof please?
- How do you prove #sec^6x(secxtanx) - sec^4x(secxtanx) = sec^5xtan^3x#?
- How do you show that sin(x+60) + sin(x+120) =(√3)cosx ?
- How do you prove #(1+sec(x))/(sin(x)+tan(x))= csc(x)#?
- How do you prove #[sin(x+ y) - sin(x-y)] /[ cos(x+ y) + cos(x-y)]= tan y#?
- How do you prove #Sinx/Cosx+Cosx/Sinx = (Sin^2xCos^2x)/(CosxSinx)#?
- Why is #1-cos^3x=(1-cosx)(1-2cosx+cos^2x)# a conditional equation?
- How do you prove #cos(x) / (1-sin(x)) = sec(x) + tan(x)#?
- How do you verify the identity #1/(1-sintheta)+1/(1+sintheta)=2sec^2theta#?
- If #sectheta+tantheta=3/2#, what is the value of #sintheta#?
- How do you prove #(1+tany)/(1+coty)=secy/cscy#?
- How do you prove #cos^2β-sin^2β=2cos^2β-1#?
- How do you prove #[1 - cos(x)]/[sin(x)] = tan(x/2)#?