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Complete the following statement: If sin(30)=½, then the cos( ___)=½.

Complete the following statement: If sin(30)=½, then the cos( ___)=½.
asked 110k views
2 votes
Complete the following statement: If sin(30)=½, then the cos( ___)=½.

asked
User Horus
by
7.9k points

1 Answer

2 votes
Sin A=Cos (90º-A)

Then:
sin 30º=cos (90º-30º)=Cos 60º=1/2

Answer: cos 60º=1/2
answered
User Christopher Rogers
by
8.4k points
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