Determine which of the following infinite series represents sin x and which represents cos x where x is measured in radians Then use each series to approximate the sine and cosine of π /6. π =180°;5!=5· 4· 3· 2· 1. Find the values that the sine and cosine ratios approach as the angle measure approaches zero.
a. x- x³/3! + x⁵/5! - x⁷/7! +...
b. 1- x²/2! + x⁴/4! - x⁶/6! +·s