3 years ago

Explain why cos(x)=sin(90-x) for x such that 0

1 answer:

8 0

Use the sin(a - b) formula.
sin(90 - x) = 
sin90 cosx - cos90 sinx = 
1 cosx - 0 sinx = 
cosx

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Answer:

Step-by-step explanation:

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