sin^-1(cos3π/5) find the value
Answers
Answered by
0
Answer:
Step-by-step explanation:
We need to find the value of sin
−1
(cos(
5
33π
))
sin
−1
(cos(
5
33π
))=sin
−1
(cos(
5
30π+3π
))
=sin
−1
(cos(6π+
5
3π
))
=sin
−1
(cos(
5
3π
))
=sin
−1
(sin(
2
π
−
5
3π
))
=sin
−1
(sin(−
10
π
))
=−
10
π
{∵sin
−1
(sinx)=x,forx∈[−
2
π
,
2
π
]}
∴sin
−1
(cos(
5
33π
))=−
10
π
Similar questions