kalanivale999
kalanivale999 kalanivale999
  • 13-06-2020
  • Mathematics
contestada

If sin 30º = cos(2x), then x=

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TheLazyNobita
TheLazyNobita TheLazyNobita
  • 13-06-2020

Answer:

sin 30 = cos 2x

cos60 = cos 2x ( sin(90 - 60) = cos60)

2x = 60

x = 30

Answer Link
mhanifa
mhanifa mhanifa
  • 13-06-2020

Answer:

30°

Step-by-step explanation:

sin 30º = cos(2x)

sin 30º = cos (90°-30°)

⇒2x=60° ⇒ x=30°

Answer Link

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