Posted by Jerry on Tuesday, November 13, 2012 at 9:46am.
LS = sin^4 Ø - cos^4 Ø
= (sin^2 Ø + cos^2 Ø)(sin^2 Ø - cos^2 Ø)
= (1)(sin^2 Ø - cos^2 Ø)
= RS
Related Questions
math - how do you get sin(4theta)/1+cos(4theta) to equal tan(2theta)
Prove or Disprove - Cos(X+y)cos(x-y)= cos^2theta - sin^2theta I foiled the left ...
Math - 1)Find cos theta if sin theta=3/5 and 90 degrees<theta<180 ...
math - There are no typos and no work b/c I don't know how to do them. ...
trig - find the single term of cos^2 4theta - sin^2 4theta
Math - There are no typos and no work b/c I don't know how to do them. ...
trig - establish identity 5csc^2theta-3cot^2theta=2csc^2theta+3
Math - Calculus - The identity below is significant because it relates 3 ...
Precalc - Prove or disprove the following identity. cos(-x) - sin(-x) = cos(x...
Trigonometry - Prove the identity sin(x+y+z)+sin(x+y-z)+sin(x-y+z)+ sin(x-y-z...
For Further Reading
