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Does anyone know how to solve this hard question without using a calculator
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8 votes
Does anyone know how to solve this hard question without using a calculator

Does anyone know how to solve this hard question without using a calculator-example-1
User Palash Bansal
by
8.4k points

1 Answer

5 votes

Answer:

(square root of 2)/2

Step-by-step explanation:

3pi/4 is located in the second quadrant, so the value will be positive for Y. Other than that it is just the unit circle.

User Tjysdsg
by
8.4k points
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