Question

1) Simplify into one term
 
     x x x x y
x y
x y cos 2 sin 2 sin sec cot
cos 90 sin 90
sin   


 



Answer 1

Please rewrite the question, that isn't readable.

Answer 2

awkward ok sorry :(

Answer 3

for the first one \[\square ~\cdot~\square=\square^2\]

Answer 4

\[\square \cdot\square \cdot\square \cdot\square\cdot \square\cdot x\cdot x\cdot x\cdot x\cdot\square \cdot y=\square^{6}\cdot x^4\cdot y\]