Posted by **Shadow** on Sunday, April 7, 2013 at 1:28pm.

Is 2Cos x the same thing as Cos^2 x?

Thanks

- Math -
**Ashley**, Sunday, April 7, 2013 at 3:27pm
No it is not.

## Answer This Question

## Related Questions

- Math - Solving Trig Equations - What am I doing wrong? Equation: sin2x = 2cos2x ...
- math - cosA= 5/9 find cos1/2A are you familiar with the half-angle formulas? the...
- Math - Solving for Trig Equations - Solve the following equation for 0 less than...
- Math, derivatives - f(x) = x² + 2Cos²x, find f ' (x) a) 2(x+cos x) b) x - sin x ...
- Trigonometry - Need help solving problems using the Trigonometric Identities: ...
- Math - Trig - Double Angles - Prove: cos4x = 8cos^4x - 8cos^2x + 1 My Attempt: ...
- trig - I dont understand this. can you please tell how you got each answer? ...
- Pre-Cal - verify the identity sin x(1 - 2 cos^2 x + cos^4 x) = sin^5 x 1-2cos^2 ...
- Calculus - which of the following integrals results from making the substitution...
- Trig....... - I need to prove that the following is true. Thanks (2tanx /1-tan^x...

More Related Questions