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Why is cos -pi/6 the same as cos pi/6? | Socratic
![Can you solve the equation for this interval [0, 2pi]? Sin(2x-(pi/4](https://i2.wp.com/useruploads.socratic.org/80ll0bJQuqj0EvNhvEzw_unitcircle.gif)
Can you solve the equation for this interval [0, 2pi]? Sin(2x-(pi/4

Compare cosine(pi/2+x),sin(pi/2+x),cos(pi+x),sin(pi+x) with sinx and

How do you solve sinx=sqrt2/2? | Socratic

Evaluate sin(pi/6 + sin^-1 (-1/2) ) - Maths - Inverse Trigonometric

What is sin(pi/6)? | Socratic