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1. ### how to verify (sec x +csc x)/(tan x +cot x)=(tan x +cot x)/(sec x +csc x)?

It can't be done. It can be shown that the LHS and the RHS are not equal to each other.

1 Answers · Science & Mathematics · 15/09/2011

2. ### calculus area between the curves?

...(x_1,x_2)P(x)dx - Int(x_1,x_2)H(x)dx ?= 25 LHS = 25 ==> CHECKED

1 Answers · Science & Mathematics · 23/07/2011

3. ### A square loop of wire of side 2.3 cm and electrical resistance 79 Ω is near a long straight wire that carries?

...i = current thru wire = 5.5A phi = total flux thru loop x = distance from wire to LHS of loop = 0.09 m v = speed of loop = dx/dt = 0.55 m/s R = loop resistance = 79...

1 Answers · Science & Mathematics · 14/07/2011

4. ### prove the following identity: cos5x - cos3x = -8sin^2x(2cos^3x - cosx)?

LHS=cos5x-cos3x =-2sin4x.sinx =-4sin2x.cos2x.sinx =-8sin^2x.cosx(2cos^2x-1) =-8sin^2x(2cos^3x...

1 Answers · Science & Mathematics · 09/07/2011

5. ### Good in mathematical Induction?

...n-1 Subtract to get n(1)'s = (10^n+1-10^n-9)/81 If n=5, LHS = 11111. RHS = (10^6-10^5-9)/81, which is indeed true. 10^6-10^5 = 9...

1 Answers · Science & Mathematics · 18/06/2011

6. ### mathematical induction?

...this to be true for k = 1 and k = k + 1 Consider k = 1 ------------------------ LHS = 3 RHS = 3 Thus true Consider k = k + 1...

1 Answers · Science & Mathematics · 18/05/2012

7. ### solve for w : -1/(3w+18)-3=(4/w+6)?

Is this { -1/(3w+18)}-3 on LHS?? or is it -1/{(3w+18)-3} If it is first: -1/(3w+18...

1 Answers · Science & Mathematics · 29/12/2012

8. ### Derivatives help? (d/dx) etc. for engineering?

TS is a product. Taking the derivative, using the product rule, d(TS) = T*d(S) + S*d(T) if d(TS) = T*d(S) , then S*d(T) must be zero, e.g. T is a constant hth http://www.answers.com/topic/product...

2 Answers · Science & Mathematics · 12/04/2011

9. ### Using the Routh-Hurwitz Criterion, test the stability conditions of the following closed-loop systems.?

...c. The system is stable.All roots are on the LHS of the real axis!!

2 Answers · Science & Mathematics · 21/04/2011

10. ### what would be the distance X( that is the location resultant from LHS.)?

I am going to assume that 70K and 30K are forces expressed in unknown units. Let 70K act at A, 70K act at B R = 70K + 30K = 100K Take...

1 Answers · Science & Mathematics · 17/12/2010