Question

If sinx = 11/61 , then cosx =? ​

Answer 1

Answer:

$\sin(x) = \frac{11}{61} = \frac{perpendicular}{hypotenuse} \\ base = \sqrt{ {hypotenuse}^{2} - {perpendicular}^{2} } \\ = \sqrt{61^{2} - 11^{2} } \\ = \sqrt{3721 - 121} \\ = \sqrt{3600} = 60 \\ \: \: \: \: \cos(x) = \frac{base}{hypotenuse} \\ = \frac{60}{61}$

Step-by-step explanation:

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