vipinthakurjnp
vipinthakurjnp
01-09-2020
Mathematics
contestada
plz solve this question immediately
Respuesta :
bfranky43
bfranky43
01-09-2020
squaring both sides
squaring both sides
cos2+sin2+2cossin=1
cos
2
A
+
sin
2
A
+
2
cos
A
sin
A
=
1
⟹1+2cossin=1⟹2cossin=0
⟹
1
+
2
cos
A
sin
A
=
1
⟹
2
cos
A
sin
A
=
0
⟹−2cossin=0⟹1−2cossin=1
⟹
−
2
cos
A
sin
A
=
0
⟹
1
−
2
cos
A
sin
A
=
1
⟹cos2+sin2−2cossin=1
⟹
cos
2
A
+
sin
2
A
−
2
cos
A
sin
A
=
1
⟹(cos−sin2)=1
⟹
(
cos
A
−
sin
A
2
)
=
1
⟹cos−sin=±1
Answer Link
VER TODAS LAS RESPUESTAS ( 15+ )
Otras preguntas
A database program helps to ____________. a. Organize, send, and retrieve e-mails quickly b. Deliver elegant presentations to a large audience easily c. Crea
The investiture struggle in the Holy Roman Empire __________. a. led to the calling of the crusades b. weakened the power of its emperors c. unified the empire
Find the common ratio for the following sequence. 27, 9, 3, 1, ... User: Find the common ratio for the following sequence. 1/2,-1/4, 1/8, -1/16 User: What is th
Let W be a point between points U and V on . If UV = 13, UW = 2y – 9, and WV = y – 5, solve for y.
An entrepreneur takes a risk to create a new product or a better way to operate a 4. a. True b. False
A nondirectional alternative hypothesis claims that no difference will be found between the research variables. a. True b. False
Theory of aging suggests that aging produces a gradual withdrawal from the world on physical, psychological, and social levels. Removal theory, disangagement th
The volume V of a cube is given by the formula V=s^3, where s represents the length of an edge of the cube. Suppose the edge length is 24in. What is the volume
Taking impulsive action is the result of making decisions that require a lot of thought. Please select the best answer from the choices provided. T F
Practicing in front of a mirror is unlikely to correct which of the following? fidgeting overuse of hand gestures poor eye contact use of space-fillers poor pos
