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vova2212 [387]
3 years ago
6

GUYS I NEED HELP PLEASE!!!

Mathematics
2 answers:
MariettaO [177]3 years ago
4 0

Answer:

A

Step-by-step explanation:

π/4 rad is 45°

cos 45° and sin 45° are both equal to (√2 / 2)

If you're curious, cos delta = x-coordinate while sin delta = y-coordinate

3241004551 [841]3 years ago
3 0

Answer:

A.

Step-by-step explanation:

π/4 radians = 45°

In a 45-45-90 degree angle, the ratio of the lengths of the sides is

1 : 1 : √2

x = y = 1/√2

x = y = √2/2

Answer: A.

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