Michael F.

asked • 01/31/18

Turing Trig Expression into Algebraic Expression

I have no idea how to turn this into an algebraic expression, please help ASAP!
Please give me tips on how to do this with other trig to algebraic expressions, as I have four problems I am quite literally clueless on!
 
sin (cos-1√2/2 - sin-12x)
 
 
The answer key says the answer is:
 
-2x√2 + √2-8x2
 
 
 

Bobosharif S.

If the answer is -2x√2 + √2-8x2, then maybe you typed something wrong.
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01/31/18

2 Answers By Expert Tutors

By:

Bobosharif S.

Richard D., you are giving very nice, if not the best, explanation. 
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01/31/18

Bobosharif S. answered • 01/31/18

Tutor
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Mathematics/Statistics Tutor

Michael F.

I changed part of the problem I think I mistyped, sorry!
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01/31/18

Bobosharif S.

Now the answer should be
-(√2) x + √(1/2 - 2 x2).
 
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01/31/18

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