135=3π4 Thus, cos⁡3π4=cos⁡(π−π4) =−cos⁡(π4) =−12

The value of cos⁡135 is −12.

cos⁡135°=sin⁡(90°−135°) =sin⁡(−45°) =−sin⁡45° =−22

135=3π4 Thus, cos⁡3π4=cos⁡(π−π4) =−cos⁡(π4) =−12

The value of cos⁡135 is −12.

cos⁡135°=sin⁡(90°−135°) =sin⁡(−45°) =−sin⁡45° =−22

Explained: "What is cos⁡135?"

Margie Marx

Answered question

2021-12-17

What is

\cos 135

xandir307dc

Beginner2021-12-18Added 35 answers

135 = \frac{3 π}{4}

Thus,

\cos \frac{3 π}{4} = \cos (π - \frac{π}{4})

= - \cos (\frac{π}{4})

= - \frac{1}{\sqrt{2}}

Paineow

Beginner2021-12-19Added 30 answers

The value of

\cos 135

- \frac{1}{\sqrt{2}}

RizerMix

Expert2021-12-29Added 656 answers

$\cos 135 ° = \sin (90 ° - 135 °)$
$= \sin (- 45 °)$
$= - \sin 45 °$
$= - \frac{\sqrt{2}}{2}$

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