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ITMC 2018 Grade 11 National Preliminary set01 Question 6

ITMC · ITMC 2018 Grade 11 National Preliminary set01

Question 6

For real $x$, simplify $\sin(x-1)\cos1+\cos(x-1)\sin1$.
  1. $\sin x$
  2. $\cos x$
  3. $1$
  4. $\sin x\cos2$
  5. $\cos x\cos2$