Answer:
π
2
,
3
⋅
π
2
,
3
⋅
π
4
,
7
⋅
π
4
Explanation:
Factorizing your equation we get
cot
(
x
)
=
0
so
cos
(
x
)
=
0
we get the following Solutions in the given interval
x
=
π
72
or
x
=
3
π
2
for the second case we get
cot
(
x
)
=
−
1
so
cos
(
x
)
=
−
sin
(
x
)
and we get
x
=
3
π
4
or
x
=
7
π
4
Hint:
To get the Solutions of the last equation you can use
√
sin
(
x
+
π
4
)
=
0
Step-by-step explanation:
Answer:
-3
Step-by-step explanation:
f(x)= x²+3x-1
f(-1)= (-1)²+3(-1)-1
= 1-3-1
= -2-1
= -3
Answer:
1 - 3 (1 quarter is 25 and a dime is 10, so, 3.)
4 - 10
6 - 15
14 - 33
Step-by-step explanation:
Answer: 31 teachers
Step-by-step explanation: let the number of teachers that teach in both school be x
By using venn diagram:
32 - x + x + 61 - x = 62
93 - x = 62
X = 93 - 62
X = 31
Answer:
Slope -1/3
Y-Intersept (0,11)
Step-by-step explanation:
The slope can be found next to the x
and for the Y-intersept it is 11 in the y position of the cordinates and 0 is always on the x position. (x,y)
