Solution
Solution
Solution steps
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Rewrite using trig identities
Remove parentheses:
Use the basic trigonometric identity:
Popular Examples
simplify cos(t-pi)-sin(t-pi)simplify sec(-t)-cos(-t)tan^2(-t)simplify cos(2pi+npi)simplify cos((npi)/2-pi/2)simplify sin(-sin(x))
Frequently Asked Questions (FAQ)
What is isin((2n-1)*pi/2) ?
The solution to isin((2n-1)*pi/2) is -(-1)^ni