verify the identities: 1.) 2tanx-(1+tanx)^2

verify the identities:1.) 2tanx-(1+tanx)^2 = -secx 2.) cos(x-330degrees)=1/2(�ã3cosx-sinx) *the �ãis only over the 3* 3.)
1. 3 answers
2. asked by Hailey
3. 709 views
verify:tanx secx = -2tanx
1. 1 answer
2. asked by john2
3. 531 views
2tan^2x-tanx-1=00<x<2pi •MATH - Steve, Thursday, July 18, 2013 at 11:48am (2tanx+1)(tanx-1) = 0 tanx = -1/2 or 1 ... Recall in
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2. asked by ROBIN
3. 604 views
Verify the identity.1/(tanx-secx) + 1/(tanx+secx) = -2tanx
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2. asked by Elle
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1. What two common identities are most useful for simplifying 2tanx/(sin^2x + cos^2x - tan^2x)?Two identities are: sin^2x +
1. 2 answers
2. asked by Melinda
3. 1,557 views
What two common identities are most useful for simplifying 2tanx/sin^2x + cos^2x - tan^2x?Two identities are: sin^2x + cos^2x =
1. 1 answer
2. asked by Melinda
3. 587 views
Trigonometry identities are so hard...I need some help proving these identities: *Oh, and I'm only in grade 11, so the
1. 5 answers
2. asked by Lucy
3. 749 views
For this question, they want me to use fundamental trig identities to simplify the expression. The problem is as follows;
1. 5 answers
2. asked by CodyJinks
3. 781 views
5. verify each of the following identitiesa) (sinx -cosx)(cscx+secx) =tanx-cotx b) sec2x- csc2x= tan2x- cot2x
1. 1 answer
2. asked by Nati
3. 32 views
I keep trying to solve this by factring but I can't seem to get! It's so frustrating!The problem is 1+tan2x=0 This is how I
1. 1 answer
2. asked by Jen
3. 673 views