If 180º < theta<270, cot theta =4/3 then theta/2
Answers
Answered by
1
Step-by-step explanation:
Correct option is
A
−1/
10
180
∘
θ<270
∘
⇒90
∘
<
2
θ
<135
∘
cos
2
θ=1−sin
2
θ=1−
25
9
=
25
16
180
∘
<θ<270
∘
cos
2
θ=
25
16
⇒cosθ=−
5
4
cos
2
2
θ
=
2
1+cosθ
=
2
1−4/5
=
10
1
90
∘
<θ/2<135
∘
Answered by
1
Answer:
-3/5
Step-by-step explanation:
my answer is in the image hope it will help you
Attachments:

Similar questions