In 1 8 match each expression with the correct choice to form an identity Choices may be used once more than once or not at all sin x sin x 1 cos x y 2 cos x y Drag each of the expressions given above into the appropriate area below 3 cos 4 sin 5 cos 6 sin 7 tan 8 cot 7 IN COS X cos x cosy sin x sin y cos x cos y sin x sin y sin x cOS X sin x tan x cos x cos y sin x sin y cotx COS X cotx tan x COS X Question 1 5 3 1 8 cos x cos y sin x sin y