4 years ago

Why are the values for sine and cosine equal at 45°?

1 answer:

7 0

These are values that you should know by heart. For other angles, you should be able to find the sine and cosine values using a calculator or a table.
1
sin 45 deg = opp / hyp = -----------
sqrt(2)

cos 45 deg = adj / hyp = (same as above)
sqrt(3)
Note that sin 30 deg = 1/2, and that cos 30 deg = ------------
2

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