jonathanmendez098765 jonathanmendez098765

12-02-2022
Mathematics

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Given sin 0 and angle 0 is in Quadrant II, what is the exact value of cos 0 in
simplest form? Simplify all radicals if needed.

Given sin 0 and angle 0 is in Quadrant II what is the exact value of cos 0 in simplest form Simplify all radicals if needed class=

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Eyadaqrabawi Eyadaqrabawi

12-02-2022

sin = 3/7

1 = sin²0 + cos²0

cos²0 = 1 - 9/49

cos²0 = 40/49

cos0 = √(40) / 7

since its in Quadrant 2 the sin is positive and cos is negative

cos0 = - √(40) / 7

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