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Strike441 [17]
3 years ago
5

If sin 30º = cos(2x), then x=

Mathematics
2 answers:
Lady_Fox [76]3 years ago
8 0

Answer:

sin 30 = cos 2x

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

2x = 60

x = 30

zzz [600]3 years ago
6 0

Answer:

30°

Step-by-step explanation:

sin 30º = cos(2x)

sin 30º = cos (90°-30°)

⇒2x=60° ⇒ x=30°

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