help please!: (sinx + sin2x

tanx = 5/12 and sinx<0Find sin2x and cos2x How to get the answers of sin2x = 120/169 and cos 2x = 119/169?
1. 3 answers
2. asked by Amandeep
3. 1,537 views
Verify the identity.sin2x/cosx + sinx = 2sinx Solve for all values of x: 6cos2x-7cosx-3=0 If f(x)=cos1/2x-sin2x find the value
1. 1 answer
2. asked by .
3. 869 views
First make an appropriate substitution and then use integration by parts to evaluate the indefinite integrals:∫ sinx cos³x
1. 1 answer
2. asked by Erica
3. 609 views
when y=-sinx and y=sin2x - sinx are added together and graphed, why do the maximum values of two sin functions occur where they
1. 1 answer
2. asked by ellen
3. 498 views
Prove the following:[1+sinx]/[1+cscx]=tanx/secx =[1+sinx]/[1+1/sinx] =[1+sinx]/[(sinx+1)/sinx] =[1+sinx]*[sinx/(sinx+1)]
1. 3 answers
2. asked by Anonymous
3. 936 views
Prove the identity((Cos²x - sin²x) ÷ (cosx + sinx) ) + sinx
1. 1 answer
2. 133 views
solve for (<_ = less than or equal to / pie = pie sign / -pie = negative pie)3 sin²x = cos²x ; 0 <_ x < 2pie cos²x - sin²x =
1. 3 answers
2. asked by Julie
3. 1,074 views
sinx = 4/5 and x terminates in Quadrant IIFind sin2x and cos2x How to get the answers, which are sin2x = -24/25, cos2x = -7/25?
1. 1 answer
2. asked by Amandeep
3. 1,756 views
Hi, I need a bit of help with verifying identities. The problems are as follows:sinx+cosx/cotx+1=sinx sin2x/sin -
1. 2 answers
2. asked by Retrograde
3. 628 views
Prove the following functions:(sinx+sin2x)/(1+cosx+cos2x)=tan x (cos3x/sinx)+(sin3x/cosx)=2cot2x tan2x=(2/cotx-tanx) theses are
1. 2 answers
2. asked by jared
3. 1,089 views