value of expression (cos5x +

Hi, I need help differentiating this equationy=(cos5x) (e^-5x ) This is what I tried to do.... -5 (sin5x) (e^-5x) + 5 (e^-5x)
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2. asked by SC
3. 468 views
value of expression (cos5x + cos3x)/ (sin5x - sin3x) where x = (3.14/8)
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2. asked by jignesh
3. 708 views
1) lim 1-cos x / x^2x->0 2) use the mean value theorem to determine the value of c, given that f(x) = cos5x
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2. asked by Heal the World
3. 393 views
lim (4sin2x - 3x cos5x)/(3x/2 +(x^2)cscx )x->0
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2. asked by mo
3. 569 views
lim 1-cos x / x^2 x->0 use the mean value theorem to determine the value of c, given that f(x) = cos5x
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2. asked by Beta plus
3. 446 views
1) Given that f(x,y)=xy/x^2+y^2, hence show that f(xy) = f(yx)2) use the mean value theorem to determine the value of c, given
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2. asked by Max 2
3. 283 views
Sin5x cos2x + cos5x sin2x=
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2. asked by Becky
3. 2,245 views
1) Given that f(x,y)=xy/x^2+y^2, hence show that f(xy) = f(yx)2) use the mean value theorem to determine the value of c, given
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2. asked by Beta plus
3. 422 views
Verify Identity:cos5x-cos3x=-8sin^2x(2cos^3x-cosx)
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2. asked by Erik
3. 551 views
Express cos9x+cos5x as a product.Can you just multiply the 9 and 5 to get: cos45x ? is that a product?
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2. asked by Janique
3. 535 views