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help cie mathemetics paper 1 watch

1. The acute angle x radians is such that tan x = k, where k is a positive constant. Express, in terms of k,

(i) tan (1/2 pie - x)

(ii) sin x

(i) 1/k

(ii) k/square root (1+k square)

can anyone show me the complete working for this question? Thx
2. Use the tangent rule for tan(a-b) and simplfy i)
For part ii) refer to Mr. Pythagoras
3. do you mind show me in detail workings? cause i dont really understand sorry
Use the tangent rule for tan(a-b) and simplfy i)
For part ii) refer to Mr. Pythagoras
but tan(pi/2) is undefined?
5. 1.

6. i appreciate it! thx for that! i think of the same thing as in question part 1 but how about part 2? that's a lot more complicated.
7. 2.

Just assume that opposite to angle x is the length k and the adjacent is 1
8. these won't come in p1 exams

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