**How to simplify cosx/(1+sinx)+cosx/(1-sinx)? Yahoo Answers**

3/03/2011 · the question says 'solve the equation for x in the interval 0

**How to prove (1+2sinx.cosx)/(1-2sin^2x)=(1+tanx)/(1-tan**

24/08/2018 · Learn the Transformations used in solving trig equations. To transform a given trig equation into basic trig ones, use common algebraic transformations (factoring, common factor, polynomial identities...), definitions …... Simple and best practice solution for sinx+cosx=-1.4 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to …

**sinx+cosx=-1.4 solution - geteasysolution.com**

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**Derivative of Sin(x) Wyzant Resources**

1/08/2007 · cosx + 1 = sinx for this to have solution, cosx < 0, like x being in the range 90 deg to 270 deg. let y=cosx then sinx = sqrt (1-y^2) so y + 1 = sqrt (1-y^2) how to solve rubik 3x3 is there anyway you can solve sin(x)=x^2-x without a calculator? Hi Ming. I tried quickly sketching the two graphs y = sin(x) and y = x 2 - x and I can immediately see two solutions exist: So I use guess-and-check: x = 0 works because sin(0) = 0 2 - 0 . It looks like y = 1 is close. However, sin(x) = 1 gives x = pi/2 and 1 = x 2 - x gives x = phi (the Golden Ratio) and these two values are not

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### how do you solve sinx cosx=-1 ? thanx? Yahoo Answers

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- How do you solve sinx-cosx=0 for x? Yahoo Answers

## How To Solve Sinx+cosx1

18/05/2010 · I have solve this to the half: sin2x=2sinxcosx sinx-sin3x=2cos2xsinx 2sinxcosx-2sinxcos2x=0 2sinx(cosx-cos2x)=0 sinx=0 v cosx-cos2x=0 sinx=0 cosx-cos2x=0

- I'm having some trouble solving this problem, can someone please explain the steps for me...
- 18/05/2010 · I have solve this to the half: sin2x=2sinxcosx sinx-sin3x=2cos2xsinx 2sinxcosx-2sinxcos2x=0 2sinx(cosx-cos2x)=0 sinx=0 v cosx-cos2x=0 sinx=0 cosx-cos2x=0
- Not very easy to solve this algebraically, since trigonometric functions are transcendental (meaning "not algebraic"), and most equations that combine transcendental and algebraic functions cannot be solved algebraically. You could approximate the solutions graphically, or use a technique called Newton's method, which uses some introductory calculus.
- So we have: sin(x)/cos(x) = tan(x) = 1 so x = inverse tangent of unity, which is 45 degrees and (45+180) degrees. Note that we did not deal with limit conditions of x approaching zero or 90 degrees, etc. since the solution is in a well behaved region of the trigonometric functions.