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kaylala
Group Title
Find the value of the following using the concepts of both addition and subtraction formulas and reference angle:
sin 255
 10 months ago
 10 months ago
kaylala Group Title
Find the value of the following using the concepts of both addition and subtraction formulas and reference angle: sin 255
 10 months ago
 10 months ago

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kaylala Group TitleBest ResponseYou've already chosen the best response.0
@eliassaab
 10 months ago

kaylala Group TitleBest ResponseYou've already chosen the best response.0
@ganeshie8
 10 months ago

kaylala Group TitleBest ResponseYou've already chosen the best response.0
@Callisto
 10 months ago

eliassaab Group TitleBest ResponseYou've already chosen the best response.1
\[ \sin (225)=\sin (360255)=\sin (105)=\sin (45+60)=\\\sin (45)) \cos (60)\sin (60) \cos (45) \]
 10 months ago

eliassaab Group TitleBest ResponseYou've already chosen the best response.1
\[ \sin (45)) \cos (60)\sin (60) \cos (45)=\frac{1+\sqrt{3}}{2 \sqrt{2}} \]
 10 months ago

kaylala Group TitleBest ResponseYou've already chosen the best response.0
why is it sin(360255) why the  sign there?
 10 months ago

eliassaab Group TitleBest ResponseYou've already chosen the best response.1
\[ \sin(360255)= \sin (255) =(\sin( 255)) = \sin(255) \]
 10 months ago

eliassaab Group TitleBest ResponseYou've already chosen the best response.1
Did you understand it?
 10 months ago

kaylala Group TitleBest ResponseYou've already chosen the best response.0
no sorry where did you get that?
 10 months ago

eliassaab Group TitleBest ResponseYou've already chosen the best response.1
If you add 360 to an angle you do not change the sine of that angle sin(360+y) = sin(y) sin( 360 +(x)) =sin(x) = sin(x) If you do not know these elementary facts, please review them in your book or notes.
 10 months ago

eliassaab Group TitleBest ResponseYou've already chosen the best response.1
Have you heard about periodic functions?
 10 months ago

kaylala Group TitleBest ResponseYou've already chosen the best response.0
have no heard of periodic functions ever @eliassaab
 10 months ago
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