Question

Transforming the left side to the right side
cos(t)tan(t)=sin(t)

Answer 1

write out that tan(t) as sin(t)/cos(t)... cancel out the cos(t).

Answer 2

ok :D

Answer 3

so sin(t)=sin(t) and what else?

Answer 4

notice that in both problems you posted, you changed everything in terms of sine and cosine. that is a good strategy to start from.

Answer 5

you just proved that the left side is the same as the right side.

Answer 6

ohhh is that all you have to do ?

Answer 7

yes...

Answer 8

the problem earlier, when i look at the book the answer was cos(t)