if tanX=a/b, then show that asinX-bcosX/asinX+bcosx = a^2-b^2/a...

Prove: sinx + tanx = tanx (1 + cosx) What I have so far: LS: = sinx + tanx = sinx +...

Prove: (tanx)(sinx) / (tanx) + (sinx) = (tanx) - (sinx) / (tanx)(sinx) What I have so far:...

Show that tanx= (sinx/ cosx) can be written as: tan(x-y) = (tanx - tany) / (1+ tanxtany)

show that: (1-tanx)/(1+tanx)= (1-sinx)/(cos2x)

If tany(1+tanx)=1-tanx, show that dy/dx=-1

Prove: 1-tanx/1+tanx=1-sin2x/cos2x

1-tanx/1+tanx=1-sin2x/cos2x

Show that if y=tanx/2 dy/dx=1/sinx

solve d^2y/dx^2+y=tanx show working plz i don't no it at all

proof that tanx + secx -1/tanx - secx+1 = 1+sinx/cosx

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