Saturday

August 30, 2014

August 30, 2014

Posted by **ani** on Wednesday, November 14, 2012 at 10:21pm.

2)sin^2x/1+cosx(same method)

- math -
**Reiny**, Wednesday, November 14, 2012 at 10:47pm#1

y = cos 4x/(3-x^2)

dy/dx = ( (3-x^2)(-4sin 4x) - cos 4x (-2x) )/(3-x^2)^2

try the second one, let me know what you got

- math -
**Steve**, Thursday, November 15, 2012 at 12:20amyou might be surprised at the answer to #2, unless you note that

sin^2/(1+cos) = (1-cos^2)/(1+cos) = 1-cos

no need for quotient rule or chain rule here.

**Related Questions**

Math, Calculus - Find the derivative of the function. y= xcosx - sinx What's the...

calculus - Let z = ∫e^(sin(t))dt from x to y a = x b = y I tried thinking ...

calculus - Let z = ∫e^(sin(t))dt from x to y a = x b = y I tried thinking ...

calculus - Let z = ∫(e^sin(t)dt) from x to y a = x b = y I tried thinking ...

calculus - Find dz/dy and dz/dx Let z = ∫e^(sin(t))dt from x to y a = x b...

Math, derivatives - f(x) = x² + 2Cos²x, find f ' (x) a) 2(x+cos x) b) x - sin x ...

calculus - Could someone check my reasoning? thanx Find the derivative of the ...

Math-trigonometry - Several questions from my homework, any are appreciated. ...

Trigonometry. - ( tanx/1-cotx )+ (cotx/1-tanx)= (1+secxcscx) Good one! ...

Precal - Verify the identity: sin^(1/2)x*cosx - sin^(5/2)*cosx = cos^3x sq root ...