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primeralphBest ResponseYou've already chosen the best response.0
dw:1372182326719:dw
 9 months ago

AravindGBest ResponseYou've already chosen the best response.1
do you know sin(A+B) expansion?
 9 months ago

Catsarecool97Best ResponseYou've already chosen the best response.0
yes. sin(x+y)=sinxcosy+cosxsiny
 9 months ago

AravindGBest ResponseYou've already chosen the best response.1
substitute and put values
 9 months ago

Catsarecool97Best ResponseYou've already chosen the best response.0
alright so. sinxcospi/2+cosxsinpi/2
 9 months ago

AravindGBest ResponseYou've already chosen the best response.1
sin pi/2= ... cos pi/2=....
 9 months ago

Catsarecool97Best ResponseYou've already chosen the best response.0
I'm confused now
 9 months ago

primeralphBest ResponseYou've already chosen the best response.0
You know the formula. Use the formula?
 9 months ago

AravindGBest ResponseYou've already chosen the best response.1
sin pi/2=1 cos pi/2=0
 9 months ago

AravindGBest ResponseYou've already chosen the best response.1
sinxcospi/2+cosxsinpi/2
 9 months ago

Catsarecool97Best ResponseYou've already chosen the best response.0
so sinxcos0+cosxsin1?
 9 months ago

Catsarecool97Best ResponseYou've already chosen the best response.0
how does this equal cos?
 9 months ago

primeralphBest ResponseYou've already chosen the best response.0
dw:1372182809686:dw
 9 months ago

Catsarecool97Best ResponseYou've already chosen the best response.0
oh! Thank you both!
 9 months ago
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