Answer:
42x^2
Step-by-step explanation:

Itś basically the same thing as a compare and contrast circle graph when they intersect with eachother
F(x) can be written as:
f(x) = Asin(2x); where A is the amplitude and the period of the function is half that of a normal sin function.
f(π/4) = 4
4 = Asin(2(π/4))
4 = Asin(π/2)
A = 4
Amplitude of g(x) = 1/2 * amplitude of f(x)
A for g(x) = 2
g(x) = 2sin(x)
Dudes diidlidododidododododkkcicofcoofgpofootfokclckxkxkxdiididodkdkxkc trjhnsemrejejejgckswkwjsssjszjduuuiffkhdzhjdyyshzxixuiffiidjxjxjcjxxjxjjzxkjdjxidjxjxifjxuxuxhxh UCB. Xhudidxjjcficiudjdjcjxdkcofofkcixdizuusjzjdkkxkxodjzjzjxjxkcofkckcicofcojxjxkcjxxkxmdkdkhxjxj j xjjxxjhxudxjxjidiszjhsxhhxxhuxxuhxjxujxxixjj h duudxjxhxuj. J ji cjuckvxhj ya thx jtsjcyssgzyxyxyv