1. Explain the following abbreviations. (i) SKA: (ii) KAT: (iii) SALT:

25. Which of the following is a trinomial when simplified? A \( 2 x^{2}-x^{2}+0 \) B \( 3 x^{2}+2-x^{2} \) C \( x+3 x^{2}+2-4 x \) D \( 2 x^{0}+3+x+2 \)

Write in scientific notatiol 27. \( 59,010,000 \)

39) Rechtwinkliges Dreleck: \( a=30 \mathrm{~cm}, p=12 \mathrm{~cm} \); Skizzo, \( c= \) ? \( \quad \mathrm{b}= \) ? \( \quad u= \),

5. Ungkapkan \( 0.083 \times 10^{5} \) sebagai satu nom tunggal. Express \( 0.083 \times 10^{5} \) as a single number. \( \begin{array}{ll}\text { A } 8300 & \text { C } 0.083 \\ \text { B } 83 & \text { D } 0.000083\end{array} \)

5. a. \( \int e^{x} \sqrt{1-e^{2 x}} d x \) RESUELVE