sin(90-x)=cos(x) use sum or difference formula to solve Question sin(90-x)=cos(x) use sum or difference formula to solve in progress 0 Math Parker 3 months 2021-11-06T13:51:03+00:00 2021-11-06T13:51:03+00:00 1 Answer 0 views 0

## Answers ( )

Answer:So,

Once, and