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primeralph
 one year ago
Best ResponseYou've already chosen the best response.0dw:1372182326719:dw

AravindG
 one year ago
Best ResponseYou've already chosen the best response.1do you know sin(A+B) expansion?

Catsarecool97
 one year ago
Best ResponseYou've already chosen the best response.0yes. sin(x+y)=sinxcosy+cosxsiny

AravindG
 one year ago
Best ResponseYou've already chosen the best response.1substitute and put values

Catsarecool97
 one year ago
Best ResponseYou've already chosen the best response.0alright so. sinxcospi/2+cosxsinpi/2

AravindG
 one year ago
Best ResponseYou've already chosen the best response.1sin pi/2= ... cos pi/2=....

Catsarecool97
 one year ago
Best ResponseYou've already chosen the best response.0I'm confused now

primeralph
 one year ago
Best ResponseYou've already chosen the best response.0You know the formula. Use the formula?

AravindG
 one year ago
Best ResponseYou've already chosen the best response.1sin pi/2=1 cos pi/2=0

AravindG
 one year ago
Best ResponseYou've already chosen the best response.1sinxcospi/2+cosxsinpi/2

Catsarecool97
 one year ago
Best ResponseYou've already chosen the best response.0so sinxcos0+cosxsin1?

Catsarecool97
 one year ago
Best ResponseYou've already chosen the best response.0how does this equal cos?

primeralph
 one year ago
Best ResponseYou've already chosen the best response.0dw:1372182809686:dw

Catsarecool97
 one year ago
Best ResponseYou've already chosen the best response.0oh! Thank you both!
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