What is 4cos(100pit+pi) ?

The solution to 4cos(100pit+pi) is -4cos(100pit)

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simplify 4cos(100pit+pi)

simplify

4 cos (100 π t + π)

- 4 cos (100 π t)

Solution steps

4 cos (100 π t + π)

Rewrite using trig identities

= 4 (- cos (100 π t))

Remove parentheses:

(- a) = - a

= - 4 cos (100 π t)

\frac{1}{csc ( θ ) sin ( - θ )}

\frac{y ^{2}}{sin ( x )} d y

- 3 sin (2 x - \frac{π}{3})

(1 - sin^{2} (x))^{\frac{3}{2}}

4 (1 - sin^{2} (x))