.
.The sine and cosine of 
: 
, 
.The trigonometric identities for the sine and cosine of supplementary angles: 
and 
.
isn't very well-known. However, note that: 
;
minus 
, its sine and cosine can be found from the sine and cosine of 
and 
:
.
.
. 
Find the exact value by using a half-angle identity.
Mathematics, 01.06.2020 11:57, julianjacobg126
Question 3 (Essay Worth 4 points)
Find the exact value by using a half-angle identity.
tan (7π/8)
Answers: 1
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 18:00, safi30360oz0c34
Based on the graph, what is the initial value of the linear relationship? a coordinate plane is shown. a line passes through the y-axis at -2 and the x-axis at 3.
Answers: 3
Mathematics, 21.06.2019 18:50, beeboppity
7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?
Answers: 3
Do you know the correct answer?
Question 3 (Essay Worth 4 points)
Find the exact value by using a half-angle identity.
Find the exact value by using a half-angle identity.
Questions in other subjects:
Biology, 05.05.2020 02:01
History, 05.05.2020 02:01
English, 05.05.2020 02:01
