Use the derivatives of sinx

Find the derivatives of the following18. y=〖cos〗^4 x^4 ANSWER: tanx2 19. y= sinx/(1+ 〖cos〗^2 x) ANSWER: 3sinx 20.
1. 3 answers
2. asked by StevE
3. 656 views
Can someone help me find the derivatives of these questions?For these can you only need to tell me the answer so i can see if i
1. 3 answers
2. asked by Sam
3. 696 views
Prove the following:[1+sinx]/[1+cscx]=tanx/secx =[1+sinx]/[1+1/sinx] =[1+sinx]/[(sinx+1)/sinx] =[1+sinx]*[sinx/(sinx+1)]
1. 3 answers
2. asked by Anonymous
3. 944 views
Find the partial derivatives of f(x,y)=(sinx + y)^(y sinx)
1. 0 answers
2. asked by Shaniquaa
3. 380 views
Use the derivatives of sinx and cosx to show that d/dx [tanx] = sec^2 and that d/dx [secx]=sec^2xsinx.Hence evaluate ∫ [1 +
1. 0 answers
2. asked by Arisa
3. 448 views
Calculate the derivatives of the following:(also please could you show the steps, i'm so confused) a) y = sinx - cosx b) f(x) =
1. 2 answers
2. asked by help me pls
3. 229 views
Mathematics - Trigonometric Identities - Reiny, Friday, November 9, 2007 at 10:30pm(sinx - 1 -cos^2x) (sinx + 1 - cos^2x) should
1. 3 answers
2. asked by Anonymous
3. 783 views
what are the first and second derivatives of y= sinx - 3^1/2 cos x for x in [0,2pi]
1. 1 answer
2. asked by Anonymous
3. 364 views
use the derivatives of y=sinx and y=cosx to develop the derivative of y=tanx
1. 2 answers
2. asked by Henry
3. 448 views
find the following derivatives:f(x) = (2x+5)/(x^2-3) f'(x)= (2)*(x^2 -3)-(2x+5)*2x/(x^2-3)^2 is that correct??? f(x)= (lnx)(cos
1. 1 answer
2. asked by Dan
3. 515 views