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HalpMehPlz
18.02.2020 •
Mathematics
Suppose that a person (whose natural body temperature was 98.6 x) dies suddenly in his house where the themostat was kept at 742 7. The body is discovered at 6am and had a temperature of 864 2. At 10am, the coroner arrived on the scene and found the body's temperature to be 8037 At what time did this person die?
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Ответ:
B) tan (150)=tan(180-30)=-tan30=
C) cos (-135)=cos (135)=cos (180-45)=-cos (45)=
D) sec (300)=sec (360-60)=sec(60)=2 (It lies on fourth quadrant where sec is +ve)
E) sin (240)=sin(180-(-60))=sin(-60)=-sin (60)=
(It lies on third quadrant where sin is -ve)
F) cos (330)=cos(360-30)=cos(30)=
(It lies on fourth quadrant where cos is +ve)
sin (240)- cos (330)=