sin 20° = cos ?
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Answered by
1
Step-by-step explanation:
sin20°=cos(90°-theta) theta =30°
=cos(90-20)
=cos70° hope this is help for you
Answered by
0
Answer:
70°
Step-by-step explanation:
sinθ = cos(90-θ)
; sin20° = cos (90-20)
therefore cosθ = 70°
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