Seudónimo Seudónimo

24-10-2018
Mathematics

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What is cos 45°?

A. [tex]\frac{1}{\sqrt{2}}[/tex]
B. 1
C. [tex]\frac{1}{5}[/tex]
D. [tex]\sqrt{2}[/tex]

$What is cos 45 A texfrac1sqrt2tex B 1 C texfrac15tex D texsqrt2tex class=$

Respuesta :

trevordoyleione trevordoyleione

24-10-2018

cos is (adjacent)/(hypotenuse)

cos = 1/√2

A (however typically we would rationalize the denominator)

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