SOLUTION: Hi Im doing this on my computer in credit recovery A+LS I know the answers to the problems but when I enter it on the computer it says it's wrong for example "use sum and differenc

Question 1099165: Hi Im doing this on my computer in credit recovery A+LS I know the answers to the problems but when I enter it on the computer it says it's wrong for example "use sum and difference identities to find the exact value of sin 75 degrees" (given 30 degrees and 45 degrees) I know the answer is (sqrt2+sqrt6)/4 but everytime I enter it it registers as wrong any suggestions? Thank you.
Answer by ikleyn(52811) (Show Source): You can put this solution on YOUR website!
.

sin(75) = sin(45+30) = sin(45)*cos(30) + cos(45)*sin(30) =  = .



Your answer is CORRECT !


But, probably, the computer system is not so smart as it should be.


Also try  to input    and    or other equivalent forms.

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