without using calculator find value of sin (-765°)
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-sin765....-sin45....-1/√2
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765=720+45
sin(765)=sin(720+45)=sin(2∗360+45)s
Now the period of sin x is 360 degrees. After every integral multiples of 360 degree it will repeat its value.
Sosin(2∗360+45)=sin45=(1/2).5s/)
Hope that was useful.
sin(765)=sin(720+45)=sin(2∗360+45)s
Now the period of sin x is 360 degrees. After every integral multiples of 360 degree it will repeat its value.
Sosin(2∗360+45)=sin45=(1/2).5s/)
Hope that was useful.
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