Question 3 is B
Question 4 is B
Whoa. Ok. I hope you don't need work ...
1) 3x
2) x
3) 6x
4) 3x
5) 6x
6) 4x
7) 2x
8) x
9) 2x
10) 3x^2
11) x^2
12) 5x^2
13) 3x^2+3x
14) 2x^2+3x
15) 2x^2+4x
16) 2x^2+5x
17) x^2+3x+3
18) 6x+9
19) 2x^2+3x+2
20) x^2+x+5
21) x+5y
22) 4x+y
23 on is cut off, sorry! :(
Hope this helps!
Answer:
17
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
I think
Answer:sin
2
θ
=
−
120
169
and
cos
2
θ
=
−
119
169
Explanation:
As
sin
θ
=
−
12
13
i.e. negative and
cos
θ
is positive,
θ
lies in
Q
4
i.e.
3
π
2
<
θ
<
2
π
cos
θ
=
√
1
−
(
−
12
13
)
2
−
√
1
−
144
169
=
√
25
169
=
5
13
Hence,
sin
2
θ
=
2
sin
θ
cos
θ
=
2
×
(
−
12
13
)
×
5
13
=
−
120
169
and
cos
2
θ
=
cos
θ
−
sin
2
θ
=
25
169
−
144
169
=
−
119
169
Step-by-step explanation:
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