The value of y = sin (θ) when θ = pi/2 is 1.
It is the branch of maths concerned with the functions of angles and their involvement in calculations.
We can calculate the value of sin(θ) as follows:
θ = π/2
π/2 is the radian form of 90°
y = sin (θ)
= sin (π/2)
= 1
The value of y = sin(θ) is 1. The correct answer is option B.
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