If \theta is an acute angle and \sin \theta =

Quentin Johnson

Quentin Johnson

Answered question

2021-12-26

If θ is an acute angle and sinθ=12, then what is cosθ?

Answer & Explanation

zurilomk4

zurilomk4

Beginner2021-12-27Added 35 answers

cos12=0.87758256
GaceCoect5v

GaceCoect5v

Beginner2021-12-28Added 26 answers

But I need the same answer like sinθ=12
user_27qwe

user_27qwe

Skilled2021-12-30Added 375 answers

Explanation:
Use trig identity:
cos2a+sin2a=1
cos2t=1sin2t=114=34
cost=±13=±33
Since t is an acute angle, then cos t is positive.
cost=33

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