3 years ago

BRAINLIEST someone please help!!! the answer I put is wrong the it has to be one of the three options

Mathematics

2 answers:

lorasvet [3.4K]3 years ago

7 0

C because I believe it’s the only one that comes out to positive 3

I hope this helps!!

Advocard [28]3 years ago

4 0

The correct answer for your question is c

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The expression cos 42° in terms of sine

GalinKa [24]

Answer:

$\because \: \cos \theta = \sin \: (90 \degree - \theta) \\ \\ \therefore \: \cos \: 42 \degree = \sin \: (90 \degree - 42 \degree) \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \sin \: 48 \degree \\ \\ \: \: \: \: \: \: \: \: \: \: \: \orange{ \boxed{ \therefore \: \cos \: 42 \degree =\sin \: 48 \degree}}$