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Popular >

expand 3cos(pi(x-1))

Solution

expand

3 cos (π (x - 1))

Solution

- 3 cos (π x)

Solution steps

3 cos (π (x - 1))

Expand

π (x - 1) : π x - π

= 3 cos (π x - π)

Rewrite using trig identities

= 3 (- cos (π x))

Remove parentheses:

(- a) = - a

= - 3 cos (π x)

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Frequently Asked Questions (FAQ)

What is expand 3cos(pi(x-1)) ?
The solution to expand 3cos(pi(x-1)) is -3cos(pix)