Answer:
see explanation
Step-by-step explanation:
is in the fourth quadrant
Where sin and tan are < 0 , cos > 0
The related acute angle is 2π - = 
Hence
sin([ ) = - sin() = - 
= - 
cos() = cos() =
tan(= - tan( = - 1
Answer:
25/16
Step-by-step explanation:
(4/5)^−2
=
(4/5)^−2
=
(5/4)^2
=
(5/4)*(5/4)
=
5*5/4*4
=
5^2/4^2
=
25/16
(Decimal: 1.5625)
Answer:
x=37°
Step-by-step explanation:
2x°=74° (vertically opposite angles)
2x°/2=74°/2
x=37°
Answer:
0.00109
Step-by-step explanation:
1.09(10^−3)
=1.09*10^−3
=1.09*
1
/10*10*10
=0.00109
Answer:
B. Pyramid
Step-by-step explanation:
