Help on this please!!! Need working or explaination for these questions.

*** Answer given but some might be wrong. THANKS!

change to an expression containing only sin and cos.

1

a.tan0csc0 Ans:1/cos0

b. sec0-tan0sin0 Ans:cos0

c.(tan0/csc0)+(sin/tan0) Ans:1/cos0

d. cot0+tan0 Ans:1/(sin0cos0)

e. (sec^sqrt0-1)/(sin^sqrt0) Ans:1/cos^sqrt0

f. (cot^sqrt0)/(csc^sqrt0) Ans:cos^sqrt0

2. Simplify

a. (sin x/csc x)+ (cos x/sec x) Ans:1

b.1/cot0sec0 Ans:sin0