Refer to the following functions: p(x)=x²+2x-15 x+1 q(x) -- r(x) -√7x Which of the following statement/s is or are true? i. The composite function req is defined for all x < 7. Note: rag=r[q(x)] ii. The resulting function of the product of p and g is defined for any real number x. iii. The difference quotient-2--2--2 is defined for any real number & except 0. i only ii only iii only i, ii, and iii

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