Ask a New Question

Question

tanx=1/1,tany=1/3 then cos2x=sin2y
12 years ago

Answers

Steve
x = pi/4, so cos2x = 0
since y ≠ pi/2, sin2y ≠ 0

I suspect a typo somewhere
12 years ago

Related Questions

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:... If tanx = 2/3 tany = 1/2 then tan(x-y) = ?? a.7/4 b.7/6 c.1/8 d.8/6 which answer is corr... 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 dy/dx+tanx tany=cosx secy prove that (tanx + tany) / (cotx + coty) = (tanx)(tany) if cosx=-12/13 and tany =8/15, pi/2<x<pi, pi<x<3pi/2 evaluate the following a) cos(x-y) b)tan2x
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use