2tanx +tanx-tan^3x

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:...

verify: tanx secx = -2tanx

1/tanx-secx+ 1/tanx+secx=-2tanx so this is what I did: =tanx+secx+tanx-secx =(sinx/cosx)+ (1/...

prove that cosx(tanx+2)(2tanx+1)=2secx+5sinx

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

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

2tanx-sin2x÷2sin*2x =tanx

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