SOLUTION: sin^2theta-cos^2theta=1/4 then find the value of sin^4 theta-cos^4 theta

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Question 938113: sin^2theta-cos^2theta=1/4 then find the value of sin^4 theta-cos^4 theta
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

same, sin%5E4+%28theta%29-cos%5E4+%28theta%29 is equal to 1%2F4 too
proof:


since sin%5E2%28theta%29%2Bcos%5E2%28theta%29=1

sin%5E4+%28theta%29-cos%5E4+%28theta+%29=1%2F4