Proving identities

Welcome to the "Proving Identities" category on Questions LLC! In this section, you will find a curated collection of questions and discussions dedicated to the art of proving identities. Whether you're a mathematics enthusiast, a problem-solving aficionado, or simply curious about the logical reasoning behind identity proofs, this is the perfect place for you. Our community of experts and passionate individuals are here to guide you through various techniques, strategies, and examples that showcase the intricate process of establishing equality between mathematical expressions. So, dive in, explore, and enhance your understanding of proving identities on Questions LLC!

Questions (25)

6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin �y10.Prove that 1+tanθ/1-tanθ = sec^2θ+2tanθ/1-tan^2θ 17.Prove that
1. 2 answers
2. asked by eddy
3. 582 views
Prove the identity of the following equation:(cos 2x)/(1/(cos x)) * (sin(pi + x))/(tan x) = (sec(x) - csc(x)) * (csc(x))/(sec^2
1. 3 answers
2. asked by Julia
3. 594 views
Prove: (3−4sin2𝑥)(sec2𝑥−4tan2𝑥)=(3−1tan2𝑥)(1−4sin2𝑥)
1. 1 answer
2. asked by raghu
3. 156 views
Hello!In order to prevent confusion that may be caused by reading this problem written through keyboard text, I have written the
1. 2 answers
2. asked by Monika
3. 482 views
Please help me proof the identity. This isn't even math to me, I can not understand it so please show all work. God blessA)1-cos
1. 3 answers
2. asked by Rachel
3. 593 views
How do i prove that left side equals right?Cot(A+B)=cotAcotB-1/(cotA + cotB)
1. 4 answers
2. asked by Chloe
3. 1,222 views
Prove:1) 1 / sec X - tan X = sec X + tan X 2) cot A + tan A = sec A csc A 3)sec A - 1 / sec A + 1 = 1 - cos A / 1 + cos A
1. 4 answers
2. asked by Maria Christina
3. 574 views
prove each identity1) (sec - cos) / tan = sin 2) (csc^2 - 1) / csc^2 = cos^2 3) (sin/csc) - 1 = -cos/sec
1. 1 answer
2. asked by clarice
3. 437 views
I don't understand,please be clear!Prove that each equation is an identity. I tried to do the problems, but I am stuck. 1. cos^4
1. 2 answers
2. asked by Anonymous
3. 557 views
For each of the following determine whether or not it is an identity and prove your result.a. cos(x)sec(x)-sin^2(x)=cos^2(x) b.
1. 2 answers
2. asked by anonymous
3. 640 views
Prove the following trigonometric identities1. tanx = sinx + sin^2x/cosx(1+sinx) 2. cos^3+(cosx)(sin^2x) = 1/secx
1. 2 answers
2. asked by noel
3. 518 views
Currently in school we're learning about proving identities and for extra credit I got this problem.cosB= -8/17 in quad II and I
1. 1 answer
2. asked by Luis
3. 473 views
Proving Identities:2 columns (tan + cot)^2 = sec^2 + csc^2 I'm having trouble breaking down the left side to = the right side..
1. 7 answers
2. asked by Don
3. 417 views
1. if sin 2A = Psin2B,prove that tan(A+B)/tan(A-B)=P+1/P-1.
1. 0 answers
2. asked by seema
3. 428 views
OK, I've been stuck on this question for like.. an hour. Prove how cos 2x = 1. Thanks for the help!Nvm... lol I got it. There
1. 1 answer
2. asked by Jordan
3. 339 views
Prove: (3cosx + 4sinx)^2 + (4cosx - 3sinx)^2=5 ...this is all under the square root sign.I get 9cos^2x + 16sin^2x +16cos^2x +
1. 1 answer
2. asked by linds
3. 580 views
If tan A=a/b prove that 2sec theta + 1/ cos theta+2=Õ a2+b2/b
1. 4 answers
2. asked by Anonymous
3. 1,681 views
I am having problems with proving identities that has a number and an exponent with it.Like: *2cosxcsc2x = cscx *sin^2 2x =
1. 2 answers
2. asked by Jam
3. 732 views
Im really struggling with these proving identities problems can somebody please show me how to do these? I'm only aloud to
1. 5 answers
2. asked by Alycia
3. 655 views
Im really struggling with these proving identities problems can somebody please show me how to do these? I'm only aloud to
1. 4 answers
2. asked by Alycia
3. 638 views
How do you proove the identitytanxsin2x = 2-2cos^2x
1. 2 answers
2. asked by Rachel
3. 538 views
Hello! I have been learning about proving identities and can do simple ones but lately I have been really struggling. I am
1. 6 answers
2. asked by Jenny
3. 519 views
If Tan (A+B)=1/3 and Tan(A-B)=2/5,then prove thatA.Tan2A=11/13 B.Tan2B=-1/17
1. 1 answer
2. asked by Gunda
3. 497 views
Im really struggling with these proving identities problems can somebody please show me how to do these? I'm only aloud to
1. 1 answer
2. asked by Alycia
3. 448 views
this is for proving identies and its fustrating i can't solve this one question! lolx=feta (btw the first part is supposed to be
1. 4 answers
2. asked by diana
3. 449 views