Find the value of of sin 270^(circ).

Kelton Rogers

Kelton Rogers

Answered question

2023-03-25

Find the value of sin270.

Answer & Explanation

Bollacasaep22

Bollacasaep22

Beginner2023-03-26Added 6 answers

Find the value given trigonometric expression.
We know, sin270can be stated as, sin270=sin(180+90)
As sin is a periodic function of time period 2π, also negative in third quadrant or sin(π+θ)=sinθ,whereπ=180
Hence,
sin270=sin(180+90)=-sin90=-1sin270=-1
Thus, the value of sin270is-1.

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