What is cos(wt-pi/4) ?

The solution to cos(wt-pi/4) is (sqrt(2)cos(wt)+sqrt(2)sin(wt))/2

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simplify cos(wt-pi/4)

simplify

cos (wt - \frac{π}{4})

\frac{2 cos ( wt ) + 2 sin ( wt )}{2}

Solution steps

cos (wt - \frac{π}{4})

Rewrite using trig identities

= \frac{2 cos ( wt ) + 2 sin ( wt )}{2}

(10 sin (x)) (10 cos (x))

- sin (\frac{π}{2} - x)

cos (a + 7 5^{\circ})

csc (2 π - x)

sin (\frac{π}{2} - α)

What is cos(wt-pi/4) ?
The solution to cos(wt-pi/4) is (sqrt(2)cos(wt)+sqrt(2)sin(wt))/2