if 0<a<pi/2

prove that tana = root all (1-cos2a)/(1+cos2a)

( the square root is above the entire right hand side)

and

if 4tan(a-b) = 3tana, prove that tanb = sin2a/(7+cos2a)

thanks for any help, i really appreciate it ! =D

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- July 25th 2009, 03:26 AMflyinhigh123trig cont.
if 0<a<pi/2

prove that tana = root all (1-cos2a)/(1+cos2a)

( the square root is above the entire right hand side)

and

if 4tan(a-b) = 3tana, prove that tanb = sin2a/(7+cos2a)

thanks for any help, i really appreciate it ! =D - July 25th 2009, 03:48 AMrunning-gag
- July 25th 2009, 05:54 AMyeongil
- July 25th 2009, 06:48 AMSoroban
Hello, flyinhigh123!

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