How do you evaluate #(sin (π/ 6) cos (π /4) − sin (π/ 4) cos (π/ 6) )^2#?
1 Answer
Feb 9, 2016
As a decimal:
Explanation:
(http://mathworld.wolfram.com/TrigonometryAnglesPi6.html)
Now let's plug in:
multiply the two terms:
Consolidate the numerators:
Square the numerator and denominator:
Gather like terms (2 and 6):
Factor
simplify:
Divide each term by 4:
As a decimal: .06699