SOLUTION: How to solve cos(3pi+pi/4)

Question 1037444: How to solve cos(3pi+pi/4)
Found 2 solutions by thesvw, ikleyn:
Answer by thesvw(77) (Show Source): You can put this solution on YOUR website!

= (-1)(1/sqrt( 2 )) - 0(1/sqrt( 2 ))
= -(1/sqrt( 2 ))
sqrt means sqare root.
Answer by ikleyn(52800) (Show Source): You can put this solution on YOUR website!
.
= .

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