What is cos 135?

May 7, 2018

The value of #cos 135# is #-1/sqrt(2)#.

We have #cos 135#.

#135= (3pi)/4#

#cos((3pi)/4)=cos(pi-pi/4)#

# =-cos(pi/4)#

# =-1/sqrt2#

Hope it helps!!

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