verifying-trigonometric-identities-how-to-do-it-the-easy-way

# Interactive video lesson plan for: Verifying Trigonometric Identities - How To Do It The Easy Way!

#### Activity overview:

This video shows you a simplified way in verifying trigonometric identities whenever you have to prove or verify a trig identity.

Here are some basic rules:
1. Convert Sine to Cosine
2. A + B = C Get Common Denominators & Combine Into a Single Fraction
3. C = A + B Split The Fraction Into Two Smaller Fraction
4. Convert Division To Multiplication
5. Multiply By The Conjugate of The Denominator
6. Factor - Factor out the GCF, Factor by using difference of perfect squares, factor the trinomial & cancel.

Here are the examples that are covered in this video:
1. sinx secx = tanx
2. tan^2x cot^2x = 1
3. sinx tanx + cosx = secx
4. secx - cosx = tanx sinx
5. (1-sinx)/cosx = secx - tanx
6. tan^2x / secx = secx - cotx
7. sec^2x / tanx = secx cscx
8. sinx / (1+cosx) = (1-cosx) / sinx
9. (1-sinx) / cosx + cosx / (1-sinx) = 2 secx
10. sec^2 x tan^2 x + sec^2 x = sec^4 x
11. sin^4 x - cos^4 x = sin^2 x - cos^2 x
12. csc^4 x - 2 csc^2 x + 1 = cot^4 x
13. (csc^2 x - 2cscx - 3) / (cscx - 3) = cscx + 1

Tagged under: verifying trigonometric identities, easy ,prove identity,verify identity,trig identities,sinxsecx=tanx,tan^2xcot^2x=1,sinxtanx+cosx=secx,secx-cosx=tanxsinx,(1-sinx)/cosx=secx-tanx,tan^2x/secx=secx-cotx,sec^2x/tanx=secxcscx,sinx/(1+cosx)=(1-cosx)/sinx,(1-sinx)/cosx+cosx/(1-sinx)=2secx,sec^2xtan^2x+sec^2x=sec^4x,sin^4x-^4x=sin^2x-^2x

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