WJEC Unit 3 Specimen — Question 12

Exam BoardWJEC
ModuleUnit 3 (Unit 3)
SessionSpecimen
TopicProduct & Quotient Rules
12. (a) Differentiate \(\cos x\) from first principles.
(b) Differentiate the following with respect to \(x\), simplifying your answer as far as possible.
  1. \(\frac { 3 x ^ { 2 } } { x ^ { 3 } + 1 }\)
  2. \(x ^ { 3 } \tan 3 x\)
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