Solution
Solution
Solution steps
Rewrite using trig identities
Popular Examples
simplify cos(-sin(x))simplify sin(θ-90)simplify cos(arcsin(13x))simplify sin(t-pi/2)simplify tan(pi/2-θ)
Frequently Asked Questions (FAQ)
What is cos(90+a) ?
The solution to cos(90+a) is -sin(a)