sec theta=3, sin theta>0 Find sin theta

Ava-May Nelson 2020-12-15 Answered
secθ=3,sinθ>0
Find sinθ
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Expert Answer

gwibdaithq
Answered 2020-12-16 Author has 84 answers

since secθ=3>0 is positive and sinθ>0 then θ is in Quadrant I.
We know that:
secθ=hypopp=31
So
(opp)2+(adj)2=(hyp)2
(opp)2+12=32
(opp)2+1=9
(opp)2=8
opp=8=22
Hence
sinθ=opphypp
sinθ=223

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