pre cal 2
posted by kc .
verify the identity tanx times cotx/cosx=secx

tanx(cotx/cosx)=secx
tanx(1/tanx)(1/cosx)=secx
cross out tanx with (1/tanx) and your left with (1/cosx) which is secx.
Respond to this Question
Similar Questions

Math
1)A piano tuner uses a tuning fork. If middle C has a frequency of 264 vibrations per second, write an equation in the form d=sinw(t) for the simple harmonic motion. 2) Verify the identity tan^2Xcot^2X/tanX+cotX=tanXcotX I'm not … 
PreCalc
Trigonometric Identities Prove: (tanx + secx 1)/(tanx  secx + 1)= tanx + secx My work so far: (sinx/cosx + 1/cosx + cosx/cosx)/(sinx/cos x  1/cosx + cosx/cosx)= tanx + cosx (just working on the left side) ((sinx + 1  cosx)/cosx)/((sinx … 
PreCalculus
How do you verify: 1.) sinxcosx+sinx^3secx=tanx 2.) (secx+tanx)/(secxtan)=(secx+tanx)^2 I tried starting from the left on both problems, but am stuck. like I said before, change everything into sines and cosines. for the first one: … 
Trig
Verify that each of the following is an identity. tan^2xsin^2x=tan^2xsin^2x I can get it down to cos^2 on the right, but cannot get it to work out on the left. secx/cosx  tanx/cotx=1 On the left I got down to 1tan^2, but that clearly … 
drwls
My previous question: Verify that (secx/sinx)*(cotx/cscx)=cscx is an identity. (secx/sinx)*(cotx/cscx) = (secx/cscx)(cotx/sinx) = (sinx/cosx)*cotx*(1/sinx) "The last steps should be obvious" Not to me. I can convert (sinx/cosx) to … 
trig
Verify that each equation is an identity. 16. 1+tanx/sinx+cosx =secx ok i have a clue on how to do it. i multiplyed the denominator by sinxcosx and i also did the top but when i do i get this weird fraction with all these cos and … 
pre cal
verify each identity tan(x/2)=tanx/secx+1 
Trig
verify the following identity: tanx+cotx/cscx=secx 
Pre Calculus
(secx)/(tanx)+(cscx)/(cotx)=secx+cscx Please help me verify this trigonometric identity. 
Math
Im really struggling with these proving identities problems can somebody please show me how to do these?