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Prove the identites are Equal
Sin A  cos A / sin A + cos A  sin A / cos A = 2  sec A csc A
 one year ago
 one year ago
Prove the identites are Equal Sin A  cos A / sin A + cos A  sin A / cos A = 2  sec A csc A
 one year ago
 one year ago

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lilsis76Best ResponseYou've already chosen the best response.1
dw:1349291754923:dw @hartnn this is the other problem.
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
write cos A  sin A as  (sin Acos A)
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
dw:1349292009958:dw
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
i asked u to write cos A  sin A as  (sin Acos A) u have written cos A  sin A as  (cos A + sin A) ..... . ....
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
oh. haha. im sorry im very bad at this. im more of a visual learner. just a moment let me fix this.
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
wait, i just realized, were talking about the far left fraction right?
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
dw:1349292496553:dw
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
i asked u to write cos A  sin A as  (sin Acos A) u have written cos A  sin A as  (sin A +cos A) ..... . ....
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
but how is that possible that its a  cos A ? I dont see it
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
 (sin Acos A) = sin A (cos A) = sin A +cos A = cos A sin A
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
dw:1349292833969:dw
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
ok , lets forget everything, lets go another way. can u separate out the denominator ?
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
like (a+b)/c = a/c + b/ c
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
i think i can, but it would be in 4 sections right? like sin A / Sin A  cos A/sinA + cos A/cos A sinA/cos A
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
absolutely correct! whats sin A/ sin A =? and cos A/cos A = ?
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
there going to equal 1
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
what? well if u add them 1 + 1 = that makes 2
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
yes. now u are left with cos A/sinA sinA/cos A cross multiply again, same as previous problem
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
dw:1349293671738:dw
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
(sin^2x + cos^2 x) = 1
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
oh shoot. thats right... okay because it was a negative the answer will be negative too.
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
okay i got the same answer too
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
what was left in the denominator
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
dw:1349293889401:dw
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
Okay this is what i have so far. I like to put things in steps.
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
dw:1349294146174:dw see this.
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
ya i see it, i under stand it but just forgot where the 2 came from. it came from the 2 fractions that crossed each other out right?
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
it came from sinx/sin x + cosx / cos x = 1+1 = 2
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
okay, ya thats what i thought :)
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
now how can we get rid of that  1 ?
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
dw:1349294542963:dw what is 1/sin a and 1/ cos a ?
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
the 1/ sin a = the inverse of cos. that is csc and 1/ cos a = is the inverse of sine sec
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
dw:1349294713780:dw got it ?
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
i got it..............man WHAT THE HEY?! why is this so complicating?!
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
do u have any advice for me to kind of remember what to do. Because I know what the inverse fractions look like and everything I just get stuck all the time.
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
3 tips: 1. practice. 2. more practice. 3. more and more practice. want 4th ? :P
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
really?!......I try doing more homework problems as practice and i get more confused. then i go to tutoring at school. ugH?! math hates my brain
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
have patience, you will understand someday. else i will be there to help u.
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
okay then. Thank you for helping me out. Im going to work on english. Have a good day.
 one year ago

hartnnBest ResponseYou've already chosen the best response.0
think positive, think u like math. u also have a good day, i will have good night :)
 one year ago

lilsis76Best ResponseYou've already chosen the best response.1
dw:1349295088469:dw
 one year ago
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