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nirvana33 [79]
3 years ago
7

Sin30=cos(2x) then x=

Mathematics
1 answer:
Paraphin [41]3 years ago
8 0

Answer:

x = 30.

Step-by-step explanation:

Use the identity sin A = cos (90 - A).

So sin 30 = cos (90 - 30) = cos 60.

cos 2x = cos 60

so x = 30.

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