Question

if sin theta is equal to cosec theta and 0<_theta<_pi, then the value of theta is
a. pi
b. pi/2
c. pi/4
d. 0

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Answer 1

Answer:

sinθ−cosθ=0

sinθ=cosθ

sinθ=sin(π /2−θ)

θ=( π/2 −θ)

⇒2θ= π/2

⇒θ= π/4