1. Using the laws of indices, remove the brackets from
2. Transpose the formula for y
3. Convert 18 degrees to radians.
18 pi/180
= pi/10r
= 0.314 radians
4. Simplify
5. Simplify cosAtanA
6. Given that f(x) = x^2+1, write an expression for f(x+2)
Thanks.