This question was asked in Ex 1.2, 7 (i)
𝑓 and 𝑔 are functions defined on R as
𝑓(𝑥) = 4𝑥 − 1 and 𝑔(𝑥) = 𝑥^2
a) Find 𝑔𝑜𝑓(𝑥) 
b) Find 𝑔𝑜𝑓(2)
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