I have this trig problem:
now what we did in class is cross multuplying both of them and we get the answer.
I want to know how to get the answer in long process. thank you!
Hello AnemoriI think you have a sign wrong. One of the minus signs should be a plus sign. So perhaps you must mean: prove the identity:Start with the LHS, and multiply top-and-bottom of the fraction byOn the other hand, if it's the other minus sign that's wrong, again you'll start with the LHS, but this time multiply top-and-bottom by .
, using the identity
Grandad