A sequence is defined by the recursive function f⁡(n+1)=−10⁢f⁡(n). If f of 1 is equal to 1 , what is f of 3 ?

Start with f(1) = 1 and apply the rule f(n + 1) = −10f(n) twice. This gives f(2) = −10 and f(3) = (−10)(−10) = 100, so the correct choice is C, 100.

AI-written and checked against the verified answer.