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1. ### Verify the identity sin+(cos/tan)=csc?

LHS : sinx + (cosx/tanx) = sinx + (cosx / (sinx/cosx)) = sinx + (cos^2 x / sinx) = (sin^2x + cos^2x) / sinx = 1/sinx = cscx = RHS

1 Answers · Education & Reference · 04/05/2013

2. ### Verify Identities help?

LHS : cscx - sinx = (1/sinx) - sinx = (1 - sin^2 x) / sinx = cos^2 x / sinx = (cosx/sinx) * cosx = cosx cotx = RHS

1 Answers · Education & Reference · 05/03/2014

3. ### Help me solve for x (logarithms)?

LHS =log(3)(5x) because loga +logb=logab. So log(3)(5x)=log(3)15 giving 5x=15 and x=3.

1 Answers · Education & Reference · 31/08/2013

4. ### identify the identities: sin3=(sinx)(3-4sin^2x) & solve algebraically in int. [0,2pi): cos2x+cos4x=0?

Here's the identity one: LHS = sin 3x = sin(2x + x) = sin 2x cosx + cos 2x sinx = 2 sinx cosx cosx + (2cos²...

2 Answers · Education & Reference · 22/04/2010

5. ### mathematical induction help?

When n = 1, the value of the LHS is 1 - 1/2 = 1/2, and of the RHS is... n is increased to n + 1, the LHS changes by: 1/[2(n + 1) - 1] - 1/2(n + 1) = 1...

1 Answers · Education & Reference · 26/09/2007

6. ### How do you solve |-4x|/(3-x)<0 ?

As the LHS side is negative, the numerator and denominator must be of different signs...

1 Answers · Education & Reference · 13/03/2012

7. ### Verify this identity in Trig?

each bit on the LHS can be simplified first using co-function identities...

1 Answers · Education & Reference · 16/02/2012

8. ### Trigonometry Pproblems Help!!!!!! *10 Pointsss**?

1. Starting from the left hand side ( LHS ): = tanθ.cosθ = (sinθ/cosθ).cosθ Cancel the... 3. Starting from the left hand side ( LHS ): = (secθ+tanθ)(secθ-tanθ) = sec²θ-...

1 Answers · Education & Reference · 16/03/2010

9. ### How do i reword this sentence???? URGENT?

Me and my peers at LHS would like to take this opportunity to thank the Board of education for the insightful and useful lesson in Civics about taxation with representation.

4 Answers · Education & Reference · 14/06/2011

10. ### If A + B + C = 180 degree then prove that (sin 2A + sin 2B + sin 2C) = 4 sinA.sinB.sinC ???

Left Hand Side ( LHS ) = 2 sin A. cos A + 2 sin (B+C). cos (B - C...

1 Answers · Education & Reference · 24/05/2008