- #1
synergix
- 177
- 0
Homework Statement
simplify cosx4-sinx4
The Attempt at a Solution
I got cos2x
does anybody want to solve this and let me know if I am right ?
Solve cosx^4-sinx^4: Confirm My Answer?
- Thread starter synergix
- Start date
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SUMMARY
The expression cos(x4) - sin(x4) simplifies to cos(2x). This conclusion is confirmed by multiple participants in the discussion, emphasizing the use of the difference of squares factorization method. The correct application of trigonometric identities is crucial for arriving at this solution efficiently.
PREREQUISITES- Understanding of trigonometric identities
- Familiarity with the difference of squares factorization
- Basic knowledge of algebraic manipulation
- Experience with simplifying trigonometric expressions
- Study the difference of squares factorization technique
- Review trigonometric identities, particularly double angle formulas
- Practice simplifying complex trigonometric expressions
- Explore advanced algebraic techniques for polynomial simplification
Students studying trigonometry, mathematics educators, and anyone looking to enhance their skills in simplifying trigonometric expressions.
simplify cosx4-sinx4
I got cos2x
does anybody want to solve this and let me know if I am right ?
- #2
srvs
- 31
- 0
Cos2x is correct.
- #3
tiny-tim
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synergix said:
Hi synergix!
It's obviously cos2x
…if you're not sure, then either you didn't go the quick way (factorise a4 - b4
), or you're not familiar enough with your trignonometric identities Similar threads
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