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Popular >

simplify cos(2(t+pi/2))

Solution

simplify

cos (2 (t + \frac{π}{2}))

Solution

- cos (2 t)

Solution steps

cos (2 (t + \frac{π}{2}))

Expand

2 (t + \frac{π}{2}) : 2 t + π

= cos (2 t + π)

Rewrite using trig identities

= - cos (2 t)

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Frequently Asked Questions (FAQ)

What is cos(2(t+pi/2)) ?
The solution to cos(2(t+pi/2)) is -cos(2t)