Х 8. Let f and g be the functions defined by
f(x) = sin x and g(x) = cos x. For which of
the following values of a is the line tangent to
the graph of f at x = a parallel to the line
tangent to the graph of g at r= a ?

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

45

step-by-step explanation:

to find a percentage, add a decimal in front and multiply it by the other number.

.25 times 180= 45

answer: 16

step-by-step explanation: first you would add 6+6 which equals 12 then add 2+2 which equals 4. then add 12 + 4 which is 16.

hope this ^_^